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    San Diego (/ˌsæn diˈeɪɡoʊ/  SAN dee-AY-goh, Spanish: [san ˈdjeɣo]) is a city on the Pacific coast of Southern California, adjacent to the Mexico–United States border. With a population of over 1.3 million, it is the eighth-most populous city in the United States and the second-most populous in the state of California. San Diego is the seat of San Diego County, which has a population of nearly 3.3 million.[16] It is known for its mild year-round Mediterranean climate, extensive beaches and parks, long association with the United States Navy, and recent emergence as a healthcare and biotechnology development center.

    Historically home to the Kumeyaay people, San Diego has been referred to as the Birthplace of California, as it was the first site visited and settled by Europeans on what is now the West Coast of the United States.[17] Upon landing in San Diego Bay in 1542, Juan Rodríguez Cabrillo claimed the area for Spain, forming the basis for the settlement of Alta California 200 years later. The Presidio and Mission San Diego de Alcalá, founded in 1769, formed the first European settlement in what is now California. In 1821, San Diego became part of the newly declared Mexican Empire, which reformed as the First Mexican Republic two years later. California was ceded to the U.S. in 1848 following the Mexican–American War and was admitted as the 31st state in 1850.

    The largest sectors of the economy of San Diego include military and defense-related activities, tourism, international trade, research, and manufacturing. The city is home to several universities, including UC San DiegoSan Diego State University, and the University of San Diego. San Diego is the economic center of the San Diego–Tijuana region, the second-most populous transborder metropolitan area in the Western Hemisphere, home to an estimated five million people as of 2022.[18] The primary border crossing between San Diego and Tijuana, the San Ysidro Port of Entry, is the busiest international land border crossing in the world outside of Asia (fourth-busiest overall). San Diego International Airport (SAN) is the busiest single-runway airport in the United States.[19]

    Name

    [edit]

    San Diego’s name can be traced back to the 16th century when Spanish explorer Sebastián Vizcaíno bestowed it upon the area in 1602. He named the bay and the surrounding area “San Diego de Alcalá” in honor of Saint Didacus of Alcalá.[20]

    Prior to the Spanish establishment of San Diego, the Kumeyaay town was called Kosa’aay, meaning “drying out place” in the Kumeyaay language.[21] After the establishment of San Diego, the Kumeyaay called town and city Tepacul Watai, meaning “Stacked Big”.[22] Luiseño speakers in the North County region called it Pushuyi.[23]

    History

    [edit]

    See also: History of San Diego

    For a chronological guide, see Timeline of San Diego.

    Pre-colonial period

    [edit]

    Full length portrait of a man in his thirties wearing a long robe, woman and child visible behind him and dog to his left
    The Kumeyaay, referred to by the Spanish as Diegueños, have inhabited the area for thousands of years.

    What has been referred to as the San Dieguito complex was established in the area at least 9,000 years ago.[24] The Kumeyaay may have culturally evolved from this complex or migrated into the area around 1000 C.E.[25] Archaeologist Malcolm Rogers hypothesized that the early cultures of San Diego were separate from the Kumeyaay, but this claim is disputed.[26] Rogers later reevaluated his claims, yet they were influential in shaping historical tellings of early San Diego history.[26]

    The Kumeyaay established villages scattered across the region, including the village of Kosa’aay which was the Kumeyaay village that the future settlement of San Diego would stem from in today’s Old Town.[21][27] The village of Kosa’aay was made up of thirty to forty families living in pyramid-shaped housing structures and was supported by a freshwater spring from the hillsides.[21]

    Spanish period

    [edit]

    Portuguese explorer Juan Rodríguez Cabrillo landing in San Diego Bay in 1542, claiming California for the Spanish Empire

    The first European to visit the region was explorer Juan Rodríguez Cabrillo. Sailing his flagship San Salvador from Navidad, New Spain, Cabrillo claimed the bay for the Spanish Empire in 1542, and named the site “San Miguel”.[28] In November 1602, Sebastián Vizcaíno surveyed the harbor and what are now Mission Bay and Point Loma and named the area for the Catholic Saint Didacus, a Spaniard more commonly known as San Diego de Alcalá.[20]

    The permanent European colonization of both California and San Diego began in 1769 with the arrival of four contingents of Spaniards from New Spain and the Baja California peninsula. Two seaborne parties reached San Diego Bay: the San Carlos, under Vicente Vila and including as notable members the engineer and cartographer Miguel Costansó and the soldier and future governor Pedro Fages, and the San Antonio, under Juan Pérez. An initial overland expedition to San Diego from the south was led by the soldier Fernando Rivera and included the Franciscan missionary, explorer, and chronicler Juan Crespí, followed by a second party led by the designated governor Gaspar de Portolá and including the mission president Junípero Serra.[29]

    Mission San Diego de Alcalá was founded in 1769 by Saint Junípero Serra, making it the oldest of the Spanish missions in California.

    In May 1769, Portolà established the Presidio of San Diego on a hill near the San Diego River above the Kumeyaay village of Cosoy,[21] which would later become incorporated into the Spanish settlement,[27] making it the first settlement by Europeans in what is now the state of California. In July of the same year, Mission San Diego de Alcalá was founded by Franciscan friars under Serra.[30][31] The mission became a site for a Kumeyaay revolt in 1775, which forced the mission to relocate six miles (10 km) up the San Diego River.[32] By 1797, the mission boasted the largest native population in Alta California, with over 1,400 neophytes living in and around the mission proper.[33] Mission San Diego was the southern anchor in Alta California of the historic mission trail El Camino Real. Both the Presidio and the Mission are National Historic Landmarks.[34][35]

    Mexican period

    [edit]

    José María Estudillo served as commandant of the Presidio of San Diego and founded the Estudillo family, a powerful clan of Californios.

    In 1821, Mexico won its independence from Spain, and San Diego became part of the Mexican territory of Alta California. In 1822, Mexico began its attempt to extend its authority over the coastal territory of Alta California. The fort on Presidio Hill was gradually abandoned, while the town of San Diego grew up on the level land below Presidio Hill. The Mission was secularized by the Mexican government in 1834, and most of the Mission lands were granted to former soldiers. The 432 residents of the town petitioned the governor to form a pueblo, and Juan María Osuna was elected the first alcalde (“municipal magistrate”). Beyond the town, Mexican land grants expanded the number of California ranchos that modestly added to the local economy.

    However, San Diego had been losing population throughout the 1830s, due to increasing tension between the settlers and the indigenous Kumeyaay and in 1838 the town lost its pueblo status because its size dropped to an estimated 100 to 150 residents.[36] The ranchos in the San Diego region faced Kumeyaay raids in the late 1830s and the town itself faced raids in the 1840s.[37]

    Americans gained an increased awareness of California, and its commercial possibilities, from the writings of two countrymen involved in the often officially forbidden, to foreigners, but economically significant hide and tallow trade, where San Diego was a major port and the only one with an adequate harbor: William Shaler‘s “Journal of a Voyage Between China and the North-Western Coast of America, Made in 1804” and Richard Henry Dana‘s more substantial and convincing account, of his 1834–36 voyage, Two Years Before the Mast.[38]

    Casa de Estudillo, built 1827, is one of San Diego’s oldest buildings and served as inspiration for Helen Hunt Jackson‘s 1884 novel Ramona.

    In 1846, the United States went to war against Mexico and sent a naval and land expedition to conquer Alta California. At first, they had an easy time of it, capturing the major ports including San Diego, but the Californios in southern Alta California struck back. Following the successful revolt in Los Angeles, the American garrison at San Diego was driven out without firing a shot in early October 1846. Mexican partisans held San Diego for three weeks until October 24, 1846, when the Americans recaptured it. For the next several months the Americans were blockaded inside the pueblo. Skirmishes occurred daily and snipers shot into the town every night. The Californios drove cattle away from the pueblo hoping to starve the Americans and their Californio supporters out. On December 1, the American garrison learned that the dragoons of General Stephen W. Kearney were at Warner’s Ranch. Commodore Robert F. Stockton sent a mounted force of fifty under Captain Archibald Gillespie to march north to meet him. Their joint command of 150 men, returning to San Diego, encountered about 93 Californios under Andrés Pico.

    The 1846 Battle of San Pasqual was a decisive battle between American and Californio forces.

    In the ensuing Battle of San Pasqual, fought in the San Pasqual Valley which is now part of the city of San Diego, the Americans suffered their worst losses in the campaign. Subsequently, a column led by Lieutenant Gray arrived from San Diego, rescuing Kearny’s command.[39] Stockton and Kearny went on to recover Los Angeles and force the capitulation of Alta California with the “Treaty of Cahuenga” on January 13, 1847. As a result of the Mexican–American War of 1846–48, the territory of Alta California, including San Diego, was ceded to the United States by Mexico, under the terms of the Treaty of Guadalupe Hidalgo in 1848. The Mexican negotiators of that treaty tried to retain San Diego as part of Mexico, but the Americans insisted that San Diego was “for every commercial purpose of nearly equal importance to us with that of San Francisco”, and the Mexican–American border was eventually established to be one league south of the southernmost point of San Diego Bay.[40]

    American period

    [edit]

    View of San Diego Bay in 1873 following the U.S. conquest of California

    The state of California was admitted to the United States in 1850. That same year San Diego was designated the seat of the newly established County of San Diego and was incorporated as a city. Joshua H. Bean, the last alcalde of San Diego, was elected the first mayor. Two years later the city was bankrupt;[41] the California legislature revoked the city’s charter and placed it under control of a board of trustees, where it remained until 1889. A city charter was reestablished in 1889, and today’s city charter was adopted in 1931.[42]

    The original town of San Diego was located at the foot of Presidio Hill, in the area which is now Old Town San Diego State Historic Park. The location was not ideal, being several miles away from navigable water at its port at La Playa. In 1850, William Heath Davis promoted a new development by the bay shore called “New San Diego”, several miles south of the original settlement; however, for several decades the new development consisted only of a pier, a few houses and an Army depot for the support of Fort Yuma. After 1854, the fort became supplied by sea and by steamboats on the Colorado River and the depot fell into disuse. From 1857 to 1860, San Diego became the western terminus of the San Antonio-San Diego Mail Line, the earliest overland stagecoach and mail operation from the Eastern United States to California, coming from Texas through New Mexico Territory in less than 30 days.[43]

    Oval, black and white shoulder-height portrait of a man in his forties or fifties, slightly balding wearing a suit
    Horton Plaza honors Alonzo Horton, who helped develop Downtown.

    In the late 1860s, Alonzo Horton promoted a move to the bayside area, which he called “New Town” and which became downtown San Diego. Horton promoted the area heavily, and people and businesses began to relocate to New Town because its location on San Diego Bay was convenient to shipping. New Town soon eclipsed the original settlement, known to this day as Old Town, and became the economic and governmental heart of the city.[44] Still, San Diego remained a relative backwater town until the arrival of a railroad connection in 1878.

    In 1912, San Diego was the site of a free speech fight between the Industrial Workers of the World and the city government who passed an ordinance forbidding the freedom of speech along an area of “Soapbox Row” that led to civil disobedience, vigilantismpolice violence, the abduction of Emma Goldman‘s husband Ben Reitman and multiple riots.[45][46] San Diego’s proximity to Tijuana during the Mexican Revolution made this one of the most significant free speech fights during the Wobbly era.[47]

    In 1916, the neighborhood of Stingaree, the original home of San Diego’s first Chinatown and “Soapbox Row”, was demolished by anti-vice campaigners to make way for the Gaslamp Quarter.[48]

    Hand drawn illustration of Balboa Park
    Balboa Park was built for the Panama-California Exposition of 1915.

    In the early part of the 20th century, San Diego hosted the World’s Fair twice: the Panama–California Exposition in 1915 and the California Pacific International Exposition in 1935. Both expositions were held in Balboa Park, and many of the Spanish/Baroque-style buildings that were built for those expositions remain to this day as central features of the park.[49] The menagerie of exotic animals featured at the 1915 exposition provided the basis for the San Diego Zoo.[50] During the 1950s there was a citywide festival called Fiesta del Pacifico highlighting the area’s Spanish and Mexican past.[51]

    The southern portion of the Point Loma peninsula was set aside for military purposes as early as 1852. Over the next several decades the Army set up a series of coastal artillery batteries and named the area Fort Rosecrans.[52] Significant U.S. Navy presence began in 1901 with the establishment of the Navy Coaling Station in Point Loma, and expanded greatly during the 1920s.[53] By 1930, the city was host to Naval Base San DiegoNaval Training Center San DiegoSan Diego Naval HospitalCamp Matthews, and Camp Kearny (now Marine Corps Air Station Miramar). The city was also an early center for aviation: as early as World War I, San Diego was proclaiming itself “The Air Capital of the West”.[54] The city was home to important airplane developers and manufacturers like Ryan Airlines (later Ryan Aeronautical), founded in 1925, and Consolidated Aircraft (later Convair), founded in 1923.[55] Charles A. Lindbergh‘s plane, the Spirit of St. Louis, was built in San Diego in 1927 by Ryan Airlines.[54]

    Downtown San Diego, c. 1903

    During World War II, San Diego became a major hub of military and defense activity, due to the presence of so many military installations and defense manufacturers. The city’s population grew rapidly during and after World War II, more than doubling between 1930 (147,995) and 1950 (333,865).[56] During the final months of the war, the Japanese had a plan to target multiple U.S. cities for biological attack, starting with San Diego. The plan was called “Operation Cherry Blossoms at Night” and called for kamikaze planes filled with fleas infected with plague (Yersinia pestis) to crash into civilian population centers in the city, hoping to spread plague in the city and effectively kill tens of thousands of civilians. The plan was scheduled to launch on September 22, 1945, but was not carried out because Japan surrendered five weeks earlier.[57][58][59]

    After World War II, the military continued to play a major role in the local economy, but post–Cold War cutbacks took a heavy toll on the local defense and aerospace industries. The resulting downturn led San Diego leaders to seek to diversify the city’s economy by focusing on research and science, as well as tourism.[60]

    Starting in the 1980s, many areas of Downtown, such as the Marina District, underwent redevelopment.

    From the start of the 20th century through the 1970s, the American tuna fishing fleet and tuna canning industry were based in San Diego, “the tuna capital of the world”.[61] San Diego’s first tuna cannery was founded in 1911, and by the mid-1930s the canneries employed more than 1,000 people. A large fishing fleet supported the canneries, mostly staffed by immigrant fishermen from Japan, and later from the Azores and Italy whose influence is still felt in neighborhoods like Little Italy and Point Loma.[62][63] Due to rising costs and foreign competition, the last of the canneries closed in the early 1980s.[64]

    Downtown San Diego was in decline in the 1960s and 1970s, but experienced some urban renewal since the early 1980s, including the opening of Horton Plaza, the revival of the Gaslamp Quarter, and the construction of the San Diego Convention CenterPetco Park opened in 2004.[65] Outside of downtown, San Diego annexed large swaths of land and for suburban expansion to the north and control of the San Ysidro Port of Entry.

    As the Cold War ended, the military shrank and so did defense spending. San Diego has since become a center of the emerging biotech industry and is home to telecommunications giant Qualcomm. San Diego had also grown in the tourism industry with the popularity of attractions such as the San Diego ZooSeaWorld San Diego, and Legoland California in Carlsbad.[66]

    Geography

    [edit]

    See also: List of beaches in San Diego, California and Parks in San Diego

    Satellite view of the San Diego–Tijuana area, a transborder agglomeration straddling the Mexico–United States border in the Californias

    According to SDSU professor emeritus Monte Marshall, San Diego Bay is “the surface expression of a north-south-trending, nested graben“. The Rose Canyon and Point Loma fault zones are part of the San Andreas Fault system. About 40 miles (64 km) east of the bay are the Laguna Mountains in the Peninsular Ranges, which are part of the American Cordillera.[67]

    The city lies on approximately 200 deep canyons and hills separating its mesas, creating small pockets of natural open space scattered throughout the city and giving it a hilly geography.[68] Traditionally, San Diegans have built their homes and businesses on the mesas, while leaving the urban canyons relatively wild.[69] Thus, the canyons give parts of the city a segmented feel, creating gaps between otherwise proximate neighborhoods and contributing to a low-density, car-centered environment. The San Diego River runs through the middle of San Diego from east to west, creating a river valley that serves to divide the city into northern and southern segments. Several reservoirs and Mission Trails Regional Park also lie between and separate developed areas of the city.

    Torrey Pines State Natural Reserve

    Notable peaks within the city limits include Cowles Mountain, the highest point in the city at 1,591 feet (485 m);[9] Black Mountain at 1,558 feet (475 m); and Mount Soledad at 824 feet (251 m). The Cuyamaca Mountains and Laguna Mountains rise to the east of the city, and beyond the mountains are desert areas. Cleveland National Forest is a half-hour drive from downtown San Diego. Numerous farms are found in the valleys northeast and southeast of the city.

    Climate

    [edit]

    Main article: Climate of San Diego

    San Diego
    Climate chart (explanation)
    JFMAMJJASOND266502.266521.567550.769570.370600.172630.17566077680.177660.575620.871551.76650█ Average max. and min. temperatures in °F█ Precipitation totals in inchesSource: NOAA[70]
    showMetric conversion

    Under the Köppen–Geiger climate classification system, the San Diego area has been variously categorized as having either a hot semi-arid climate (BSh in the original classification[71] and BSkn in modified Köppen classification with the n denoting summer fog)[72] or a hot-summer Mediterranean climate[73] (Csa).[74] San Diego’s climate is characterized by warm, dry summers and mild winters, with most of the annual precipitation falling between December and March. The city has a mild climate year-round,[75] with an average of 201 days above 70 °F (21 °C) and low rainfall (9–13 inches [230–330 mm] annually).

    The climate in San Diego, like most of Southern California, often varies significantly over short geographical distances, resulting in microclimates. In San Diego, this is mostly because of the city’s topography (the Bay, and the numerous hills, mountains, and canyons). Frequently, particularly during the “May gray/June gloom” period, a thick “marine layer” cloud cover keeps the air cool and damp within a few miles of the coast, but yields to bright cloudless sunshine approximately 5–10 miles (8–16 km) inland.[76] Sometimes the June gloom lasts into July, causing cloudy skies over most of San Diego for the entire day.[77][78] Even in the absence of June gloom, inland areas experience much more significant temperature variations than coastal areas, where the ocean serves as a moderating influence. Thus, for example, downtown San Diego averages January lows of 50 °F (10 °C) and August highs of 78 °F (26 °C). The city of El Cajon, just 12 miles (19 km) inland from downtown San Diego, averages January lows of 42 °F (6 °C) and August highs of 88 °F (31 °C).

    The average surface temperature of the water at Scripps Pier in the California Current has increased by almost 3 °F (1.7 °C) since 1950, according to scientists at Scripps Institution of Oceanography.[79] Additionally, the mean minimum is now above 40 °F (4 °C), putting San Diego in hardiness zone 11, with the last freeze having occurred many decades ago.

    Surfers at Pacific Beach

    Annual rainfall along the coast averages 10.65 inches (271 mm) and the median is 9.6 inches (240 mm).[80] The months of December through March supply most of the rain, with February the only month averaging 2 inches (51 mm) or more. The months of May through September tend to be almost completely dry. Although there are few wet days per month during the rainy period, rainfall can be heavy when it does fall. Rainfall is usually greater in the higher elevations of San Diego; some of the higher areas can receive 11–15 inches (280–380 mm) per year. Variability from year to year can be dramatic: in the wettest years of 1883/1884 and 1940/1941, more than 24 inches (610 mm) fell, whilst in the driest years there was as little as 3.2 inches (80 mm). The wettest month on record is December 1921 with 9.21 inches (234 mm).

    Snow in the city is rare, having been observed only six times in the century and a half that records have been kept.[81] On February 21, 2019, snow fell and accumulated in residential areas of the city, but none fell in the downtown area.[82]

    showvteClimate data for San Diego Int’l Airport (1991–2020 normals,[a] extremes 1874–present)[b]
    1. ^ Mean monthly maxima and minima (i.e. the highest and lowest temperature readings during an entire month or year) calculated based on data at said location from 1991 to 2020.
    2. ^ Official precipitation records for San Diego were kept at the Weather Bureau Office in downtown from October 1850 to December 1859 at the Mission San Diego and from November 1871 to June 1939 and a variety of buildings at downtown, and at San Diego Int’l (Lindbergh Field) since July 1939.[83] Temperature records, however, only date from October 1874. For more information on data coverage, see ThreadEx

    Ecology

    [edit]

    See also: California coastal sage and chaparral

    View of Coronado from Cabrillo National Monument

    Like much of Southern California, the majority of San Diego’s current area was originally occupied on the west by coastal sage scrub and on the east by chaparral, plant communities made up mostly of drought-resistant shrubs.[87] The steep and varied topography and proximity to the ocean create a number of different habitats within the city limits, including tidal marsh and canyons. The chaparral and coastal sage scrub habitats in low elevations along the coast are prone to wildfire, and the rates of fire increased in the 20th century, due primarily to fires starting near the borders of urban and wild areas.[88]

    San Diego’s broad city limits encompass a number of large nature preserves, including Torrey Pines State Natural ReserveLos Peñasquitos Canyon Preserve, and Mission Trails Regional Park. Torrey Pines State Natural Reserve and a coastal strip continuing to the north constitute one of only two locations where the rare species of Torrey Pine, Pinus torreyana, is found.[89] Due to the steep topography that prevents or discourages building, along with some efforts for preservation, there are also a large number of canyons within the city limits that serve as nature preserves, including Switzer Canyon, Tecolote Canyon Natural Park,[90] and Marian Bear Memorial Park in San Clemente Canyon,[91] as well as a number of small parks and preserves.

    Cowles Mountain from Lake Murray
    Serra Museum at Presidio Park

    San Diego County has one of the highest counts of animal and plant species that appear on the endangered list of counties in the United States.[92] Because of its diversity of habitat and its position on the Pacific Flyway, San Diego County has recorded 492 different bird species, more than any other region in the country.[93] San Diego always scores high in the number of bird species observed in the annual Christmas Bird Count, sponsored by the Audubon Society, and it is known as one of the “birdiest” areas in the United States.[94][95]

    San Diego and its backcountry suffer from periodic wildfires. In October 2003, San Diego was the site of the Cedar Fire, at that time the largest wildfire in California over the past century.[96] The fire burned 280,000 acres (1,100 km2), killed 15 people, and destroyed more than 2,200 homes.[97] In addition to damage caused by the fire, smoke resulted in a significant increase in emergency room visits; the poor air quality caused San Diego County schools to close for a week.[98] The October 2007 California wildfires destroyed some areas, particularly within Rancho Bernardo, as well as the nearby communities of Rancho Santa Fe and Ramona.[92]

    Neighborhoods

    [edit]

    Main article: List of communities and neighborhoods of San Diego

    The City of San Diego recognizes 52 individual areas as Community Planning Areas.[99] Within a given planning area there may be several distinct neighborhoods. Altogether the city contains more than 100 identified neighborhoods.

    Downtown San Diego is located on San Diego BayBalboa Park encompasses several mesas and canyons to the northeast, surrounded by older, dense urban communities including Hillcrest and North Park. To the east and southeast lie City Heights, the College Area, and Southeast San Diego. To the north lies Mission Valley and Interstate 8. The communities north of the valley and freeway, and south of Marine Corps Air Station Miramar, include ClairemontKearny MesaTierrasanta, and Navajo. Stretching north from Miramar are the northern suburbs of Mira MesaScripps RanchRancho Peñasquitos, and Rancho Bernardo. The far northeast portion of the city encompasses Lake Hodges and the San Pasqual Valley, which holds an agricultural preserve. Carmel Valley and Del Mar Heights occupy the northwest corner of the city. To their south are Torrey Pines State Natural Reserve and the business center of the Golden Triangle. Further south are the beach and coastal communities of La JollaPacific BeachMission Beach, and Ocean BeachPoint Loma occupies the peninsula across San Diego Bay from downtown. The communities of South San Diego (an Exclave), such as San Ysidro and Otay Mesa, are located next to the Mexico–United States border, and are physically separated from the rest of the city by the cities of National City and Chula Vista. A narrow strip of land at the bottom of San Diego Bay connects these southern neighborhoods with the rest of the city.[100]

    For the most part, San Diego neighborhood boundaries tend to be understood by its residents based on geographical boundaries like canyons and street patterns.[101] The city recognized the importance of its neighborhoods when it organized its 2008 General Plan around the concept of a “City of Villages”.[102]

    Cityscape

    [edit]

    Main article: List of tallest buildings in San Diego

    Aerial view of central San Diego

    San Diego was originally centered on the Old Town district, but by the late 1860s the focus had shifted to the bayfront, in the belief that this new location would increase trade. As the “New Town” – present-day Downtown – waterfront location quickly developed, it eclipsed Old Town as the center of San Diego.[44]

    The first skyscraper over 300 feet (91 m) in San Diego was the El Cortez Hotel, built in 1927; it was the tallest building in the city until 1963.[103] As time went on, multiple buildings claimed the title of San Diego’s tallest skyscraper, including the 530 B Street and Symphony Towers. Currently the tallest building in San Diego is One America Plaza, standing 500 feet (150 m) tall, which was completed in 1991.[104] The downtown skyline contains no supertall buildings due to a regulation put in place by the Federal Aviation Administration (FAA) in the 1970s, which set a 500 feet (152 m) limit on the height of buildings within a one-mile (1.6 km) radius of San Diego International Airport.[105] An iconic description of the skyline includes its skyscrapers being compared to the tools of a toolbox.[106]

    There are several new high-rises under construction, including two that exceed 400 feet (122 m) in height.

    Demographics

    [edit]

    Further information: Demographics of San Diego County, California and Hispanics and Latinos in San Diego

    CensusPop.Note
    1850500
    186073146.2%
    18702,300214.6%
    18802,63714.7%
    189016,159512.8%
    190017,7009.5%
    191039,578123.6%
    192074,36187.9%
    1930147,99599.0%
    1940203,34137.4%
    1950334,38764.4%
    1960573,22471.4%
    1970696,76921.6%
    1980875,53825.7%
    19901,110,54926.8%
    20001,223,40010.2%
    20101,307,4026.9%
    20201,386,9326.1%
    2023 (est.)1,388,320[107]0.1%
    Population History of Western
    U.S. Cities & Towns, 1850–1990[56]
    U.S. Decennial Census[108]
    2010–2020[10]
    showHistorical racial composition2020[109]2010[110]1990[111]1970[111]1940[111]
    1. Jump up to:a b From 15% sample

    2020

    [edit]

    Race / Ethnicity (NH = Non-Hispanic)Pop 2000[112]Pop 2010[113]Pop 2020[114]% 2000% 2010% 2020
    White alone (NH)603,892589,702565,12849.36%45.10%40.75%
    Black or African American alone (NH)92,83082,49777,5427.59%6.31%5.59%
    Native American or Alaska Native alone (NH)4,2673,5453,2000.35%0.27%0.23%
    Asian alone (NH)164,895204,347243,42813.48%15.63%17.55%
    Pacific Islander alone (NH)5,3115,1784,8870.43%0.40%0.35%
    Other race alone (NH)3,0653,2938,2080.25%0.25%0.59%
    Mixed race or Multiracial (NH)38,38842,82073,2433.14%3.28%5.28%
    Hispanic or Latino (any race)310,752376,020411,28625.40%28.76%29.65%
    Total1,223,4001,307,4021,386,932100.00%100.00%100.00%

    2010

    [edit]

    The city had a population of 1,307,402 according to the 2010 census, distributed over a land area of 372.1 square miles (963.7 km2).[115] The urban area of San Diego had a total population of 2,956,746, making it the third-largest in the state, after those of Los Angeles and San Francisco.

    The 2010 population represented an increase of just under 7% from the 1,223,400 people reported in 2000.[110] The population density was 3,771.9 inhabitants per square mile (1,456.3/km2). The racial makeup of San Diego was 58.9% White, 6.7% African American, 0.6% Native American, 15.9% Asian (5.9% Filipino, 2.7% Chinese, 2.5% Vietnamese, 1.3% Indian, 1.0% Korean, 0.7% Japanese, 0.4% Laotian, 0.3% Cambodian, 0.1% Thai). 0.5% Pacific Islander (0.2% Guamanian, 0.1% Samoan, 0.1% Native Hawaiian), 12.3% from other races, and 5.1% from two or more races. 28.8% of the population was Hispanic or Latino (of any race);[110][116] 24.9% of the total population was of Mexican heritage, 1.4% Spanish and 0.6% Puerto Rican. The median age of Hispanic residents was 27.5 years, compared to 35.1 years overall and 41.6 years among non-Hispanic whites; Hispanic San Diegans were the largest group under the age of 18, while non-Hispanic whites constituted 63.1% of population 55 and older.

    Map of racial distribution in San Diego, 2010 U.S. Census. Each dot is 25 people: ⬤ Non-Hispanic White ⬤ Black ⬤ Asian ⬤ Hispanic ⬤ Other

    As of January 2019, the San Diego City and County had the fifth-largest homeless population among major cities in the United States, with 8,102 people experiencing homelessness.[117] In the city of San Diego, 4,887 individuals were experiencing homelessness according to the 2020 count.[118] A December 11, 2023, article in The San Diego Union-Tribune by Blake Nelson reports a notable decline in the homeless population in downtown San Diego, specifically in the urban core. According to data from the Downtown San Diego Partnership, the number of individuals living outside or in vehicles has reached a two-year low, standing at approximately 1,200 as of last month. The decrease is attributed to the implementation of the city’s camping ban and the concerted efforts to establish new shelters. While enforcement has led to relatively few individuals being punished, the threat of legal consequences appears to have played a role in the reduction.[119]

    In 2000 there were 451,126 households, out of which 30.2% had children under the age of 18 living with them, 44.6% were married couples living together, 11.4% had a female householder with no husband present, and 39.8% were non-families. Households made up of individuals account for 28.0%, and 7.4% had someone living alone who was 65 years of age or older. The average household size was 2.61, and the average family size was 3.30.

    The U.S. Census Bureau reported that in 2000, 24.0% of San Diego residents were under 18, and 10.5% were 65 and over.[110] As of 2011 the median age was 35.6; more than a quarter of residents were under age 20 and 11% were over age 65.[120] Millennials (ages 26 through 42) constitute 27.1% of San Diego’s population, the second-highest percentage in a major U.S. city.[121] The San Diego County regional planning agency, SANDAG, provides tables and graphs breaking down the city population into five-year age groups.[122]

    Barrio Logan is a Chicano cultural hub and ethnic enclave.

    In 2000, the median income for a household in the city was $45,733, and the median income for a family was $53,060. Males had a median income of $36,984 versus $31,076 for females. The per capita income for the city was $35,199.[123] According to Forbes in 2005, San Diego was the fifth wealthiest U.S. city,[124] but about 10.6% of families and 14.6% of the population were below the poverty line, including 20.0% of those under age 18 and 7.6% of those age 65 or over.[123] As of January 1, 2008, estimates by the San Diego Association of Governments revealed that the household median income for San Diego rose to $66,715, up from $45,733 in 2000.[125]

    San Diego was named the ninth-most LGBT-friendly city in the U.S. in 2013.[126] The city also has the seventh-highest population of gay residents in the U.S. Additionally in 2013, San Diego State University (SDSU), one of the city’s prominent universities, was named one of the top LGBT-friendly campuses in the nation.[127]

    Religion

    [edit]

    According to a 2014 study by the Pew Research Center, 68% of the population of the city identified themselves as Christians, with 32% professing adherence to various Protestant churches and 32% professing Roman Catholic beliefs.[128][129] while 27% claim no religious affiliation. The same study found that followers of other religions (including JudaismBuddhismIslam, and Hinduism) collectively made up about 5% of the population.

    Foreign-born population

    [edit]

    The majority of San Diego’s foreign-born population were born in Mexico, the Philippines, China and Vietnam.[130]

    Economy

    [edit]

    Main article: Economy of San Diego

    An F/A-18 Hornet flying over San Diego. The city serves as a major hub for the defense industry and U.S. military.
    One America Plaza is the tallest building in San Diego.

    The largest sectors of San Diego’s economy are defense/militarytourisminternational trade, and research/manufacturing.[131][132] San Diego recorded a median household income of $79,646 in 2018, an increase of 3.89% from $76,662 in 2017.[133] The median property value in San Diego in 2018 was $654,700,[133] and the average home has two cars per household.[133]

    Top employers

    [edit]

    See also: List of companies headquartered in San Diego

    According to the city’s 2024 Annual Comprehensive Financial Report,[134] the top employers in the city are:

    EmployerNo. of Employees
    Naval Base San Diego40,472
    University of California, San Diego39,688
    Sharp HealthCare20,139
    County of San Diego18,936
    San Diego Unified School District17,226
    Scripps Health14,732
    City of San Diego13,408
    Qualcomm10,124
    Kaiser Permanente7,687
    Northrop Grumman6,639

    Defense and military

    [edit]

    View of Naval Base San Diego

    The economy of San Diego is influenced by its deepwater port, which includes the only major submarine and shipbuilding yards on the West Coast.[135] Several major national defense contractors were started and are headquartered in San Diego, including General AtomicsCubic, and NASSCO.[136][137]

    San Diego hosts the largest naval fleet in the world:[138] In 2008 it was home to 53 ships, over 120 tenant commands, and more than 35,000 sailors, marines, Department of Defense civilian employees and contractors.[139] About 5 percent of all civilian jobs in the county are military-related, and 15,000 businesses in San Diego County rely on Department of Defense contracts.[139]

    Marine Corps Recruit Depot

    Military bases in San Diego include US Navy facilities, Marine Corps bases, and Coast Guard stations. The city is “home to the majority of the U.S. Pacific Fleet’s surface combatants, all of the Navy’s West Coast amphibious ships and a variety of Coast Guard and Military Sealift Command vessels”.[139][140]

    The military infrastructure in San Diego is still growing and developing, with numerous military personnel stationed there, numbers of which are expected to rise. This plays a significant role in the city’s economy, as of 2020, it provides roughly 25% of the GDP and provides 23% of the total jobs in San Diego.[141][142][143]

    Tourism

    [edit]

    Casa de Balboa at Balboa Park is home to the San Diego History Center.

    Tourism is a major industry owing to the city’s climate, beaches,[144] and tourist attractions such as Balboa ParkBelmont ParkSan Diego ZooSan Diego Zoo Safari Park, and SeaWorld San Diego. San Diego’s Spanish and Mexican heritage is reflected in many historic sites across the city, such as Mission San Diego de Alcalá and Old Town San Diego State Historic Park. Also, the local craft brewing industry attracts an increasing number of visitors[145] for “beer tours” and the annual San Diego Beer Week in November;[146] San Diego has been called “America’s Craft Beer Capital”.[147]

    San Diego County hosted more than 32 million visitors in 2012; collectively they spent an estimated $8 billion. The visitor industry provides employment for more than 160,000 people.[148]

    San Diego’s cruise ship industry used to be the second-largest in California. Numerous cruise lines operate out of San Diego. However, cruise ship business has been in decline since 2008, when the Port hosted over 250 ship calls and more than 900,000 passengers. By 2016–2017, the number of ship calls had fallen to 90.[149]

    Local sightseeing cruises are offered in San Diego Bay and Mission Bay, as well as whale-watching cruises to observe the migration of gray whales, peaking in mid-January.[150] Sport fishing is another popular tourist attraction; San Diego is home to southern California’s biggest sport fishing fleet.[151]

    International trade

    [edit]

    The Port of San Diego is the third-busiest port in California.

    San Diego’s commercial port and its location on the United States–Mexico border make international trade an important factor in the city’s economy. The city is authorized by the United States government to operate as a foreign-trade zone.[152]

    The city shares a 15-mile (24 km) border with Mexico that includes two border crossings. San Diego hosts the busiest international border crossing in the world, in the San Ysidro neighborhood at the San Ysidro Port of Entry.[153] A second, primarily commercial border crossing operates in the Otay Mesa area; it is the largest commercial crossing on the California–Baja California border and handles the third-highest volume of trucks and dollar value of trade among all United States-Mexico land crossings.[154]

    San Ysidro Port of Entry is the 4th-busiest border crossing in the world.

    The Port of San Diego is the third-busiest port in California and one of the busiest on the West Coast. One of the Port of San Diego’s two cargo facilities is located in downtown San Diego at the Tenth Avenue Marine Terminal. This terminal has facilities for containersbulk cargo, and refrigerated and frozen storage, so that it can handle the import and export of many commodities.[155] In 2009 the Port of San Diego handled 1,137,054 short tons of total trade; foreign trade accounted for 956,637 short tons while domestic trade amounted to 180,417 short tons.[156]

    Historically tuna fishing and canning was one of San Diego’s major industries,[157] although the American tuna fishing fleet is no longer based in San Diego. Seafood company Bumble Bee Foods is headquartered in San Diego, as was Chicken of the Sea until 2018.[158][159]

    Companies

    [edit]

    The AT&T Building

    San Diego hosts several major producers of wireless cellular technology. Qualcomm was founded and is headquartered in San Diego, and is one of the largest private-sector employers in San Diego.[160] Other wireless industry manufacturers headquartered here include NokiaLG Electronics,[161] Kyocera International,[162] Cricket Communications and Novatel Wireless.[163] San Diego also has the U.S. headquarters for the Slovakian security company ESET.[164] San Diego has been designated as an iHub Innovation Center for potential collaboration between wireless and the life sciences.[165]

    The University of California, San Diego and other research institutions have helped to fuel the growth of biotechnology.[166] In 2013, San Diego had the second-largest biotech cluster in the United States, below Greater Boston and above the San Francisco Bay Area.[167] There are more than 400 biotechnology companies in the area.[168] In particular, the La Jolla and nearby Sorrento Valley areas are home to offices and research facilities for numerous biotechnology companies.[169] Major biotechnology companies like Illumina and Neurocrine Biosciences are headquartered in San Diego, while many other biotech and pharmaceutical companies have offices or research facilities in San Diego. San Diego is also home to more than 140 contract research organizations (CROs) that provide contract services for pharmaceutical and biotechnology companies.[170]

    Real estate

    [edit]

    La Jolla is a highly valued real estate market in San Diego.

    San Diego has high real estate prices. San Diego home prices peaked in 2005, and then declined along with the national trend. As of December 2010, prices were down 36 percent from the peak,[171] median price of homes having declined by more than $200,000 between 2005 and 2010.[172] As of May 2015, the median price of a house was $520,000.[173] In November 2018 the median home price was $558,000. The San Diego metropolitan area had one of the worst housing affordability rankings of all metropolitan areas in the United States in 2009.[174] The San Diego Housing Market experienced a decline in the median sold price of existing single-family homes between December 2022 and January 2023, with a 2.9% decrease from $850,000 to $824,950.[175] As of 2023, the majority of homes (nearly 60%) in San Diego are listed above $1 million, with the city’s median home price at $910,000, ranking it fourth highest among the 30 largest U.S. cities.[176][177]

    Consequently, San Diego has experienced negative net migration since 2004. A significant number of people have moved to adjacent Riverside County, commuting daily to jobs in San Diego, while others are leaving the area altogether and moving to more affordable regions.[178]

    Government

    [edit]

    Local government

    [edit]

    See also: Mayor of San DiegoSan Diego City Council, and Government of San Diego County

    Todd Gloria is the current mayor of San Diego.

    The city is governed by a mayor and a nine-member city council. In 2006, its government changed from a council–manager government to a strong mayor government, as decided by a citywide vote in 2004. The mayor is in effect the chief executive officer of the city, while the council is the legislative body.[179] The City of San Diego is responsible for police, public safety, streets, water and sewer service, planning and zoning, and similar services within its borders. San Diego is a sanctuary city,[180] however, San Diego County is a participant of the Secure Communities program.[181][182] As of 2011, the city had one employee for every 137 residents, with a payroll greater than $733 million.[183]

    The members of the city council are each elected from single-member districts within the city. The mayor and city attorney are elected directly by the voters of the entire city. The mayor, city attorney, and council members are elected to four-year terms, with a two-term limit.[184] Elections are held on a non-partisan basis per California state law; nevertheless, most officeholders do identify themselves as either Democrats or Republicans. In 2007, registered Democrats outnumbered Republicans by about 7 to 6 in the city,[185] and Democrats currently (as of 2022) hold an 8–1 majority in the city council. The current mayor, Todd Gloria, is a member of the Democratic Party.

    County Administration Center, seat of San Diego County Government

    San Diego is part of San Diego County, and includes all or part of the 1st, 2nd, 3rd and 4th supervisorial districts of the San Diego County Board of Supervisors,[186] Other county officers elected in part by city residents include the SheriffDistrict Attorney, Assessor/Recorder/County Clerk, and Treasurer/Tax Collector.

    Areas of the city immediately adjacent to San Diego Bay (“tidelands“) are administered by the Port of San Diego, a quasi-governmental agency which owns all the property in the tidelands and is responsible for its land use planning, policing, and similar functions. San Diego is a member of the regional planning agency San Diego Association of Governments (SANDAG). Public schools within the city are managed and funded by independent school districts (see below).

    After narrowly supporting Lyndon B. Johnson in 1964, San Diego provided majorities to all six Republican presidential candidates from 1968 to 1988. However, in more recent decades, San Diego has trended in favor of Democratic presidential candidates for president. George H. W. Bush in 1988 is the last Republican candidate to carry San Diego in a presidential election.

    State and federal representation

    [edit]

    San Diego Hall of Justice in 2016

    In the California State Senate, San Diego County encompasses the 38th39th and 40th districts,[187] represented by Catherine Blakespear (D), Akilah Weber (D), and Brian Jones (R), respectively.

    In the California State Assembly, lying partially within the city of San Diego are the 77th78th79th, and 80th districts,[188] represented by Tasha Boerner (D), Chris Ward (D), LaShae Sharp-Collins (D), and David Alvarez (D), respectively.

    In the United States House of Representatives, San Diego County includes parts or all of California’s 48th49th50th51st, and 52nd congressional districts,[189] represented by Darrell Issa (R), Mike Levin (D), Scott Peters (D), Sara Jacobs (D), and Juan Vargas (D) respectively.

    Scandals

    [edit]

    Weinberger U.S. Courthouse

    San Diego was the site of the 1912 San Diego free speech fight, in which the city restricted speech, vigilantes brutalized and tortured anarchists, and the San Diego Police Department killed a member of the Industrial Workers of the World (IWW).

    In 1916, rainmaker Charles Hatfield was blamed for $4 million in damages and accused of causing San Diego’s worst flood, during which about 20 Japanese American farmers died.[190]

    Then-mayor Roger Hedgecock was forced to resign his post in 1985, after he was found guilty of one count of conspiracy and 12 counts of perjury, related to the alleged failure to report all campaign contributions.[191][192] After a series of appeals, the 12 perjury counts were dismissed in 1990 based on claims of juror misconduct; the remaining conspiracy count was reduced to a misdemeanor and then dismissed.[193]

    A 2002 scheme to underfund pensions for city employees led to the San Diego pension scandal. This resulted in the resignation of newly re-elected Mayor Dick Murphy[194] and the criminal indictment of six pension board members.[195] Those charges were finally dismissed by a federal judge in 2010.[196]

    Carter-Keep U.S. Courthouse

    On November 28, 2005, U.S. Congressman Randy “Duke” Cunningham resigned after being convicted on federal bribery charges. He had represented California’s 50th congressional district, which includes much of the northern portion of the city of San Diego. In 2006, Cunningham was sentenced to a 100-month prison sentence.[197]

    In 2005 two city council members, Ralph Inzunza and Deputy Mayor Michael Zucchet, were convicted of extortionwire fraud, and conspiracy to commit wire fraud for taking campaign contributions from a strip club owner and his associates, allegedly in exchange for trying to repeal the city’s “no touch” laws at strip clubs.[198] Both subsequently resigned. Inzunza was sentenced to 21 months in prison.[199] In 2009, a judge acquitted Zucchet on seven out of the nine counts against him, and granted his petition for a new trial on the other two charges;[200] the remaining charges were eventually dropped.[201]

    In July 2013, three former supporters of Mayor Bob Filner asked him to resign because of allegations of repeated sexual harassment.[202] Over the ensuing six weeks, 18 women came forward to publicly claim that Filner had sexually harassed them,[203] and multiple individuals and groups called for him to resign. Filner agreed to resign effective August 30, 2013, subsequently pleading guilty to one felony count of false imprisonment and two misdemeanor battery charges.[204][205]

    Crime

    [edit]

    Main article: Crime in San Diego

    San Diego Police Department

    Like most major cities, San Diego had a declining crime rate from 1990 to 2000. 1991 would mark the city’s deadliest year, registering 179 homicides[206] within city limits (while the region as a whole peaked at 278 homicides),[207] capping off an unabated, eight-year climb in murders, rapes, robberies, and assault dating back to 1983. At the time, the city was ranked last among the 10 most populous U.S. cities in homicides per 1,000 population, and ninth in crimes per 1,000.[208] From 1980 to 1994, San Diego surpassed 100 murders ten times before tapering off to 91 homicides in 1995. That number would not exceed 79 for the next 15 years.[209] Crime in San Diego increased in the early 2000s.[210][211][212] In 2004, San Diego had the sixth lowest crime rate of any U.S. city with over half a million residents.[212] From 2002 to 2006, the crime rate overall dropped 0.8%, though not evenly by category. While violent crime decreased 12.4% during this period, property crime increased 1.1%. Total property crimes per 100,000 people were lower than the national average in 2008.[213]

    According to Uniform Crime Report statistics compiled by the Federal Bureau of Investigation (FBI) in 2010, there were 5,616 violent crimes and 30,753 property crimes. Of these, the violent crimes consisted of forcible rapes, 73 robberies and 170 aggravated assaults, while 6,387 burglaries, 17,977 larceny-thefts, 6,389 motor vehicle thefts and 155 acts of arson defined the property offenses.[214] In 2013, San Diego had the lowest murder rate of the ten largest cities in the United States.[215]

    Education

    [edit]

    Primary and secondary schools

    [edit]

    Main article: Primary and secondary schools in San Diego

    The Bishop’s School in La Jolla

    Public schools in San Diego are operated by independent school districts. The majority of the public schools in the city are served by San Diego Unified School District, the second-largest school district in California, which includes 11 K–8 schools, 107 elementary schools, 24 middle schools, 13 atypical and alternative schools, 28 high schools, and 45 charter schools.[216]

    Several adjacent school districts which are headquartered outside the city limits serve some schools within the city; these include Poway Unified School DistrictDel Mar Union School DistrictSan Dieguito Union High School District, and Sweetwater Union High School District. In addition, there are a number of private schools in the city.

    Colleges and universities

    [edit]

    San Diego State University

    According to education rankings released by the U.S. Census Bureau in 2017, 44.4% of San Diegans (city, not county) ages 25 and older hold bachelor’s degrees, compared to 30.9% in the United States as a whole. The census ranks the city as the ninth-most educated city in the United States, based on these figures.[217]

    The largest university in the area is the University of California, San Diego (UC San Diego). The university is the southernmost campus of the University of California system and is the second largest employer in the city. It has the seventh largest research expenditure in the country.[218]

    Other public colleges and universities in the city include San Diego State University (SDSU) and the San Diego Community College District, which includes San Diego City CollegeSan Diego Mesa College, and San Diego Miramar College.

    University of San Diego

    Private non-profit colleges and universities in the city include the University of San Diego (USD), Point Loma Nazarene University (PLNU), National University‘s San Diego campus, University of Redlands‘ School of Business San Diego campus, and Brandman University‘s San Diego campus. For-profit institutions include Alliant International University (AIU), Fashion Institute of Design & Merchandising‘s San Diego campus, NewSchool of Architecture and DesignSouthern States University (SSU), UEI College, and Woodbury University School of Architecture’s satellite campus.

    There is one medical school in the city, the UC San Diego School of Medicine. There are three ABA accredited law schools in the city, which include California Western School of LawThomas Jefferson School of Law, and University of San Diego School of Law. There is also one law school, Western Sierra Law School, not accredited by the ABA.

    Libraries

    [edit]

    Geisel Library at UC San Diego

    The city-run San Diego Public Library system is headquartered downtown and has 36 branches throughout the city.[219] The newest location is in Skyline Hills, which broke ground in 2015.[220] The libraries have had reduced operating hours since 2003 due to the city’s financial problems. In 2006 the city increased spending on libraries by $2.1 million.[221] A new nine-story Central Library on Park Boulevard at J Street opened on September 30, 2013.[222]

    In addition to the municipal public library system, there are nearly two dozen libraries open to the public run by other governmental agencies, and by schools, colleges, and universities.[223] Noteworthy are Malcolm A. Love Library at San Diego State University, and Geisel Library at the University of California, San Diego.

    Culture

    [edit]

    Main article: Culture of San Diego

    See also: City of San Diego Commission for Arts and Culture

    The Museum of Us

    The culture of San Diego is influenced heavily by the mixing of American and Mexican cultures, due to the city’s position on the Mexico–United States border, its large Chicano population, and its history as part of Hispanic America and Mexico. San Diego’s longtime association with the U.S. military also contributes to its culture.

    Many popular museums, such as the San Diego Museum of Art, the San Diego Natural History Museum, the Museum of Us, the Museum of Photographic Arts, and the San Diego Air & Space Museum, are located in Balboa Park, which is also the location of the San Diego Zoo. The Museum of Contemporary Art San Diego (MCASD) is located in La Jolla and has a branch located at Santa Fe Depot downtown.

    The San Diego Museum of Art

    The Columbia district downtown is home to historic ship exhibits belonging to the Maritime Museum of San Diego, headlined by Star of India, as well as the unrelated USS Midway Museum featuring the USS Midway aircraft carrier.

    The San Diego Symphony at Symphony Towers performs on a regular basis; from 2004 to 2017, its director was Jahja Ling. The San Diego Opera at Civic Center Plaza, directed by David Bennett. Old Globe Theatre at Balboa Park produces about 15 plays and musicals annually. La Jolla Playhouse at UC San Diego is directed by Christopher Ashley. Both the Old Globe Theatre and La Jolla Playhouse have produced the world premieres of plays and musicals that have gone on to win Tony Awards[224] or nominations[225] on Broadway. The Joan B. Kroc Theatre at Kroc Center’s Performing Arts Center is a 600-seat state-of-the-art theater that hosts music, dance, and theater performances. Hundreds of movies and a dozen TV shows have been filmed in San Diego, a tradition going back as far as 1898.[226]

    Sports

    [edit]

    Main article: Sports in San Diego

    Petco Park, home of the San Diego Padres (MLB)

    Sports in San Diego includes major professional league teams, other highest-level professional league teams, minor league teams, and college athletics. San Diego hosts two teams of the major professional leagues, the San Diego Padres of Major League Baseball (MLB) and San Diego FC of Major League Soccer (MLS).[227] The city is home to several universities whose teams compete in various NCAA Division I sports, most notably the San Diego State Aztecs. The Farmers Insurance Open, a professional golf tournament on the PGA Tour, is played annually at Torrey Pines Golf Course.

    San Diego hosted the National Football League (NFL)’s San Diego Chargers from 1961 to 2017, when the team relocated to the Greater Los Angeles area (now the Los Angeles Chargers). The city also hosted the National Basketball Association (NBA)’s San Diego Rockets from 1967 to 1971 (now the Houston Rockets) and San Diego Clippers from 1978 to 1984 (now the Los Angeles Clippers). San Diego has never hosted a National Hockey League (NHL) franchise, though it hosted the San Diego Mariners of the now-defunct World Hockey Association (WHA) from 1974 to 1977.

    Currently, there is no NBA, NFL, or NHL team in the city. San Diego is the largest American city not to have won a championship in a “Big Four”[a] major professional league. The city does have one major league title to its name: the 1963 American Football League (AFL) Championship won by the San Diego Chargers, when the AFL was an independent entity prior to the AFL–NFL merger in 1970. Some San Diego sports fans believe there is a curse on professional sports in the city.

    The San Diego Clippers of the NBA G League have played at Frontwave Arena since 2024.

    Media

    [edit]

    See also: Media in San Diego and List of media set in San Diego

    Published within the city are the daily newspaper, The San Diego Union-Tribune and its online portal of the same name,[228] and the alternative newsweeklies, San Diego CityBeat and the San Diego Reader. The Times of San Diego is a free online newspaper covering news in the metropolitan area. Voice of San Diego is a non-profit online news outlet covering government, politics, education, neighborhoods, and the arts. The San Diego Daily Transcript is a business-oriented online newspaper. San Diego is also the headquarters of the national far-right cable TV channel One America News Network (OANN).

    San Diego led U.S. local markets with 69.6 percent broadband penetration in 2004 according to Nielsen//NetRatings.[229]

    San Diego’s first television station was KFMB, which began broadcasting on May 16, 1949.[230] Since the Federal Communications Commission (FCC) licensed seven television stations in Los Angeles, two VHF channels were available for San Diego because of its relative proximity to the larger city. In 1952, however, the FCC began licensing UHF channels, making it possible for cities such as San Diego to acquire more stations. Stations based in Mexico (with ITU prefixes of XE and XH) also serve the San Diego market. Television stations today include XHCPDE 11 (Once), XETV-TDT 6 (Canal 5/Nueve), KFMB 8 (CBSMNTV on DT2), KGTV 10 (ABC), XEWT 12 (Televisa Regional), KPBS 15 (PBS), KBNT-CD 17 (Univision), XHTIT-TDT 21 (Azteca 7), XHJK-TDT 1 (Azteca Uno), XHAS-TDT 33 (Canal 66), KDTF-LD 36 (Unimás), KNSD 39 (NBC), KSKT-CD 43 (Estrella TV), XHBJ-TDT 45 (Canal 45 PSN), KUAN-LD 48 (Telemundo), XHDTV-TDT 49 (Canal 6), KUSI 51 (The CW), XHUAA-TDT 57 (El Canal de las Estrellas), and KSWB-TV 69 (Fox). San Diego has an 80.6 percent cable penetration rate.[231]

    San Diego Parade of Lights

    Due to the ratio of U.S. and Mexican-licensed stations, San Diego is the largest media market in the United States that is legally unable to support a television station duopoly between two full-power stations under FCC regulations, which disallow duopolies in metropolitan areas with fewer than nine full-power television stations and require that there would be eight unique station owners that remain once a duopoly is formed (there are only seven full-power stations on the California side of the San Diego-Tijuana market).[232] As a whole, the Mexico side of the San Diego-Tijuana market has two duopolies and one triopoly (Entravision Communications owns XHDTV-TV, Azteca owns XHJK-TV and XHTIT-TV, and Grupo Televisa owns XETV-TVXHUAA-TV and XEWT-TV.

    San Diego’s television market is limited to only San Diego County. As a result, San Diego is the largest single-county media market in the United States.

    The radio stations in San Diego include nationwide broadcaster iHeartMediaAudacy, Inc., Local Media San Diego, and many other smaller stations and networks. Stations include: KOGO AM 600KGB AM 760KCEO AM 1000KCBQ AM 1170K-PraiseKLSD AM 1360KFSD 1450 AMKPBS-FM 89.5, Channel 933Star 94.1FM 94/9FM News and Talk 95.7Q96 96.1, KyXy 96.5, Free Radio San Diego (AKA Pirate Radio San Diego) 96.9FM FRSD, KWFN 97.3, KXSN 98.1, Big-FM 100.7, 101.5 KGB-FMKLVJ 102.1, KSON 103.7, Rock 105.3, and another Pirate Radio station at 106.9FM, as well as a number of local Spanish-language radio stations.

    Infrastructure

    [edit]

    Transportation

    [edit]

    Main articles: Transportation in San Diego and Streets and highways of San Diego

    Santa Fe Depot is served by Amtrak California and Coaster trains.

    With the automobile being the primary means of transportation for over 80 percent of residents, San Diego is served by a network of freeways and highways. This includes Interstate 5, which runs south to Tijuana and north to Los Angeles; Interstate 8, which runs east to Imperial County and the Arizona Sun Corridor; Interstate 15, which runs northeast through the Inland Empire to Las Vegas and Salt Lake City; and Interstate 805, which splits from I-5 near the Mexican border and rejoins I-5 at Sorrento Valley.

    Major state highways include SR 94, which connects downtown with I-805, I-15 and East CountySR 163, which connects downtown with the northeast part of the city, intersects I-805 and merges with I-15 at MiramarSR 52, which connects La Jolla with East County through Santee and SR 125SR 56, which connects I-5 with I-15 through Carmel Valley and Rancho PeñasquitosSR 75, which spans San Diego Bay as the San Diego–Coronado Bridge, and also passes through South San Diego as Palm Avenue; and SR 905, which connects I-5 and I-805 to the Otay Mesa Port of Entry.

    San Diego Trolley is operated by the S.D. Metropolitan Transit System.

    The stretch of SR 163 that passes through Balboa Park is San Diego’s oldest freeway, dating back to 1948 when it was part of US 80 and US 395. It has been called one of America’s most beautiful parkways.[233]

    San Diego’s roadway system provides an extensive network of cycle routes. Its dry and mild climate makes cycling a convenient year-round option; however, the city’s hilly terrain and long average trip distances make cycling less practicable. Older and denser neighborhoods around the downtown tend to be oriented to utility cycling. This is partly because the grid street patterns are now absent in newer developments farther from the urban core, where suburban-style arterial roads are much more common. As a result, the majority of cycling is recreational.

    The Cross Border Xpress, also known as the Puerta de las Californias, connects San Diego to Tijuana International Airport in Baja California.

    San Diego is served by the San Diego Trolley light rail system,[234] by the MTS bus system,[235] the bus rapid transit system Rapid, private jitneys in some neighborhoods,[236] and by Coaster[237] and Pacific Surfliner[238] commuter rail; northern San Diego County is also served by the Sprinter hybrid rail service.[239] The trolley primarily serves downtown and surrounding urban communities, Mission Valley, east county, and coastal south bay. A mid-coast extension of the trolley operates from Old Town to University City and the University of California, San Diego along Interstate 5 since November 2021. The Amtrak and Coaster trains currently run along the coastline and connect San Diego with Los Angeles, Orange County, Riverside, San Bernardino, and Ventura via Metrolink and the Pacific Surfliner. There are two Amtrak stations in San Diego, in Old Town and Santa Fe Depot downtown. San Diego transit information about public transportation and commuting is available on the Web and by dialing “511” from any phone in the area.[240]

    San Diego International Airport

    The city has two major commercial airports within or near its city limits. San Diego International Airport (SAN) is the busiest single-runway airport in the United States.[241][242] It served over 24 million passengers in 2018 and is dealing with larger numbers every year.[243] Tijuana International Airport has a terminal within the city limits in the Otay Mesa district connected to the rest of the airport in Tijuana, Mexico, via the Cross Border Xpress cross-border footbridge. In addition, the city has two general-aviation airports, Montgomery-Gibbs Executive Airport (MYF) and Brown Field Municipal Airport (SDM).[244]

    San Diego Bay Festival of Sail

    Recent regional transportation projects have sought to mitigate congestion, including improvements to local freeways, expansion of San Diego Airport, and doubling the capacity of the cruise ship terminal. Freeway projects included expansion of Interstates 5 and 805 around “The Merge” where these two freeways meet, as well as expansion of Interstate 15 through North County, which includes new HOV “managed lanes”. A tollway (the southern portion of SR 125, known as the South Bay Expressway) connects SR 54 and Otay Mesa, near the Mexican border. According to an assessment in 2007, 37 percent of city streets were in acceptable condition. However, the proposed budget fell $84.6 million short of bringing streets up to an acceptable level.[245] Expansion at the port has included a second cruise terminal on Broadway Pier, opened in 2010. Airport projects include the expansion of Terminal Two.[246]

    Utilities

    [edit]

    Water is supplied to residents by the Water Department of the City of San Diego. The city receives most of its water from the Metropolitan Water District of Southern California, which brings water to the region from the Sacramento and San Joaquin rivers, via the state project and the Colorado River, via the Colorado Aqueduct.[247]

    Gas and electric utilities are provided by San Diego Gas & Electric, a division of Sempra Energy.[further explanation needed] The company provides energy service to 3.7 million people through 1.5 million electric meters and 900,000 natural gas meters in San Diego and southern Orange counties.[248]

    Street lights

    [edit]

    Street lights in the Gaslamp Quarter

    In the mid-20th century the city had mercury vapor street lamps. In 1978, the city decided to replace them with more efficient sodium vapor lamps. This triggered an outcry from astronomers at Palomar Observatory 60 miles (100 km) north of the city, concerned that the new lamps would increase light pollution and hinder astronomical observation.[249] The city altered its lighting regulations to limit light pollution within 30 miles (50 km) of Palomar.[250]

    In 2011, the city announced plans to upgrade 80% of its street lighting to new energy-efficient lights that use induction technology, a modified form of fluorescent lamp producing a broader spectrum than sodium vapor lamps. The new system is predicted to save $2.2 million per year in energy and maintenance.[251] In 2014, San Diego announced plans to become the first U.S. city to install cyber-controlled street lighting.

  • Shoe

    shoe is an item of footwear intended to protect and comfort the human foot. Though the human foot can adapt to varied terrains and climate conditions, it is vulnerable, and shoes provide protection. Form was originally tied to function, but over time, shoes also became fashion items. Some shoes are worn as safety equipment, such as steel-toe boots, which are required footwear at industrial worksites.

    Additionally, shoes have often evolved into many different designs; high heels, for instance, are most commonly worn by women during fancy occasions. Contemporary footwear varies vastly in style, complexity and cost. Basic sandals may consist of only a thin sole and simple strap and be sold for a low cost. High fashion shoes made by famous designers may be made of expensive materials, use complex construction and sell for large sums of money. Some shoes are designed for specific purposes, such as boots designed specifically for mountaineering or skiing, while others have more generalized usage such as sneakers which have transformed from a special purpose sport shoe into a general use shoe.

    Traditionally, shoes have been made from leatherwood or canvas, but are increasingly being made from rubberplastics, and other petrochemical-derived materials.[1] Globally, the shoe industry is a $200 billion a year industry.[1] 90% of shoes end up in landfills, because the materials are hard to separate, recycle or otherwise reuse.[1]

    History

    Antiquity

    The oldest known leather shoe, about 5500 years old, found in Armenia
    Esparto sandals from the 6th or 5th millennium BC found in Spain
    Roman shoes: a man’s,[2] a woman’s[3] and a child’s[4] shoe from Bar Hill Roman Fort, Scotland.

    Earliest evidence

    The earliest known shoes are sagebrush bark sandals dating from approximately 7000 or 8000 BC, found in the Fort Rock Cave in the US state of Oregon in 1938.[5] The world’s oldest leather shoe, made from a single piece of cowhide laced with a leather cord along seams at the front and back, was found in the Areni-1 cave complex in Armenia in 2008 and is believed to date to 3500 BC.[6][7] Ötzi the Iceman‘s shoes, dating to 3300 BC, featured brown bearskin bases, deerskin side panels, and a bark-string net, which pulled tight around the foot.[6] The Jotunheimen shoe was discovered in August 2006: archaeologists estimate that this leather shoe was made between 1800 and 1100 BC,[8][9] making it the oldest article of clothing discovered in Scandinavia. Sandals and other plant fiber based tools were found in Cueva de los Murciélagos in Albuñol in southern Spain in 2023, dating to approximately 7500 to 4200 BC, making them what are believed to be the oldest shoes found in Europe.[10]

    It is thought that shoes may have been used long before this, but because the materials used were highly perishable, it is difficult to find evidence of the earliest footwear.[11]

    Footprints suggestive of shoes or sandals due to having crisp edges, no signs of toes found and three small divots where leather tying laces/straps would have been attached have been at Garden Route National ParkAddo Elephant National Park and Goukamma Nature Reserve in South Africa.[12] These date back to between 73,000 and 136,000 BP. Consistent with the existence of such shoe is the finding of bone awls dating back to this period that could have made simple footwear.[12]

    Another source of evidence is the study of the bones of the smaller toes (as opposed to the big toe); it was observed that their thickness decreased approximately 40,000 to 26,000 years ago. This led archaeologists to deduce the existence of common rather than an occasional wearing of shoes as this would lead to less bone growth, resulting in shorter, thinner toes.[13] These earliest designs were very simple, often mere “foot bags” of leather to protect the feet from rocks, debris, and cold.

    Americas

    Many early natives in North America wore a similar type of footwear, known as the moccasin. These are tight-fitting, soft-soled shoes typically made out of leather or bison hides. Many moccasins were also decorated with various beads and other adornments. Moccasins were not designed to be waterproof, and in wet weather and warm summer months, most Native Americans went barefoot.[14] The leaves of the sisal plant were used to make twine for sandals in South America while the natives of Mexico used the Yucca plant.[15][16]

    Africa and Middle East

    As civilizations began to develop, thong sandals (precursors to the modern flip-flop) were worn. This practice dates back to pictures of them in ancient Egyptian murals from 4000 BC. “Thebet” may have been the term used to describe these sandals in Egyptian times, possibly from the city Thebes. The Middle Kingdom is when the first of these thebets were found, but it is possible that it debuted in the Early Dynastic Period.[17] One pair found in Europe was made of papyrus leaves and dated to be approximately 1,500 years old. They were also worn in Jerusalem during the first century of the Christian era.[18] Thong sandals were worn by many civilizations and made from a vast variety of materials. Ancient Egyptian sandals were made from papyrus and palm leaves. The Masai of Africa made them out of rawhide. In India they were made from wood.

    While thong sandals were commonly worn, many people in ancient times, such as the EgyptiansHindus and Greeks, saw little need for footwear, and most of the time, preferred being barefoot.[19] The Egyptians and Hindus made some use of ornamental footwear, such as a soleless sandal known as a “Cleopatra”,[citation needed] which did not provide any practical protection for the foot.

    Asia and Europe

    The ancient Greeks largely viewed footwear as self-indulgent, unaesthetic and unnecessary. Shoes were primarily worn in the theater, as a means of increasing stature, and many preferred to go barefoot.[19] Athletes in the Ancient Olympic Games participated barefoot—and naked.[20] Even the gods and heroes were primarily depicted barefoot, as well as the hoplite warriors. They fought battles in bare feet and Alexander the Great conquered his vast empire with barefoot armies. The runners of Ancient Greece had also been believed to have run barefoot.[21]

    Footwear of Roman soldiers (reconstruction)

    The Romans, who eventually conquered the Greeks and adopted many aspects of their culture, did not adopt the Greek perception of footwear and clothing. Roman clothing was seen as a sign of power, and footwear was seen as a necessity of living in a civilized world, although the slaves and paupers usually went barefoot.[19] Roman soldiers were issued with chiral (left and right shoe different) footwear.[22] Shoes for soldiers had riveted insoles to extend the life of the leather, increase comfort, and provide better traction. The design of these shoes also designated the rank of the officers. The more intricate the insignia and the higher up the boot went on the leg, the higher the rank of the soldier.[23] There are references to shoes being worn in the Bible.[24] In China and Japan, rice straws were used.[citation needed]

    Starting around 4 BC, the Greeks began wearing symbolic footwear. These were heavily decorated to clearly indicate the status of the wearer. Courtesans wore leather shoes colored with white, green, lemon or yellow dyes, and young woman betrothed or newly married wore pure white shoes. Because of the cost to lighten leather, shoes of a paler shade were a symbol of wealth in the upper class. Often, the soles would be carved with a message so it would imprint on the ground. Cobblers became a notable profession around this time, with Greek shoemakers becoming famed in the Roman empire.[25]

    Middle Ages and early modern period

    Asia and Europe

    A common casual shoe in the Pyrenees during the Middle Ages was the espadrille. This is a sandal with braided jute soles and a fabric upper portion, and often includes fabric laces that tie around the ankle. The term is French and comes from the esparto grass. The shoe originated in the Catalonian region of Spain as early as the 13th century, and was commonly worn by peasants in the farming communities in the area.[16]

    New styles began to develop during the Song dynasty in China, some of them resulting from the binding of women’s feet, first used by the noble Han classes, but soon spreading throughout Chinese society. The practice allegedly started during the Shang dynasty, but it grew popular by c. AD 960.[26]

    When the Mongols conquered China, they dissolved the practice in 1279, and the Manchus banned foot binding in 1644. The Han people, however, continued the practice without much government intervention.[26]

    Dutch pattens, c. 1465. Excavated from the archeological site of Walraversijde, near OstendBelgium

    In medieval times shoes could be up to two feet long, with their toes sometimes filled with hair, wool, moss, or grass.[27] Many medieval shoes were made using the turnshoe method of construction, in which the upper was turned flesh side out, and was lasted onto the sole and joined to the edge by a seam.[28] The shoe was then turned inside-out so that the grain was outside. Some shoes were developed with toggled flaps or drawstrings to tighten the leather around the foot for a better fit. Surviving medieval turnshoes often fit the foot closely, with the right and left shoe being mirror images.[29] Around 1500, the turnshoe method was largely replaced by the welted rand method (where the uppers are sewn to a much stiffer sole and the shoe cannot be turned inside-out).[30] The turn shoe method is still used for some dance and specialty shoes.

    By the 15th century, pattens became popular by both men and women in Europe. These are commonly seen as the predecessor of the modern high-heeled shoe,[31] while the poor and lower classes in Europe, as well as slaves in the New World, were barefoot.[19] In the 15th century, the Crakow was fashionable in Europe. This style of shoe is named because it is thought to have originated in Kraków, the capital of Poland. The style is characterized by the point of the shoe, known as the “polaine”, which often was supported by a whalebone tied to the knee to prevent the point getting in the way while walking.[32] Also during the 15th century, chopines were created in Spain, and were usually 7–8 in (180–200 mm) high.[33] These shoes became popular in Venice and throughout Europe, as a status symbol revealing wealth and social standing. During the 16th century, royalty, such as Catherine de Medici or Mary I of England, started wearing high-heeled shoes to make them look taller or larger than life. By 1580, even men wore them, and a person with authority or wealth was often referred to as, “well-heeled”.[31] In 17th century France, heels were exclusively worn by aristocrats. Louis XIV of France outlawed anybody from wearing red high heels except for himself and his royal court.[34]

    Eventually the modern shoe, with a sewn-on sole, was devised. Since the 17th century, most leather shoes have used a sewn-on sole. This remains the standard for finer-quality dress shoes today. Until around 1800, welted rand shoes were commonly made without differentiation for the left or right foot. Such shoes are now referred to as “straights”.[35] Only gradually did the modern foot-specific shoe become standard.

    Industrial era

    Asia and Europe

    shoemaker in the Georgian era, from The Book of English Trades, 1821.

    Shoemaking became more commercialized in the mid-18th century, as it expanded as a cottage industry. Large warehouses began to stock footwear, made by many small manufacturers from the area.

    Until the 19th century, shoemaking was a traditional handicraft, but by the century’s end, the process had been almost completely mechanized, with production occurring in large factories. Despite the obvious economic gains of mass production, the factory system produced shoes without the individual differentiation that the traditional shoemaker was able to provide.

    In the 19th century Chinese feminists called for an end to foot binding, and a ban in 1902 was implemented. The ban was soon repealed, but it was banned again in 1911 by the new Nationalist government. It was effective in coastal cities, but countryside cities continued without much regulation. Mao Zedong enforced the rule in 1949 and the practice is still forbidden. A number of women still have bound feet today.[26]

    Woman’s shoe, China, possibly Shanxi or Ningbo style, late 19th to early 20th century

    The first steps towards mechanisation were taken during the Napoleonic Wars by the engineer, Marc Brunel. He developed machinery for the mass production of boots for the soldiers of the British Army. In 1812, he devised a scheme for making nailed-boot-making machinery that automatically fastened soles to uppers by means of metallic pins or nails.[36] With the support of the Duke of York, the shoes were manufactured, and, due to their strength, cheapness, and durability, were introduced for the use of the army. In the same year, the use of screws and staples was patented by Richard Woodman. Brunel’s system was described by Sir Richard Phillips as a visitor to his factory in Battersea as follows:

    By the late 19th century, the shoemaking industry had migrated to the factory and was increasingly mechanized. Pictured, the bottoming room of the B. F. Spinney & Co. factory in Lynn, Massachusetts, 1872.

    In another building I was shown his manufactory of shoes, which, like the other, is full of ingenuity, and, in regard to subdivision of labour, brings this fabric on a level with the oft-admired manufactory of pins. Every step in it is affected by the most elegant and precise machinery; while, as each operation is performed by one hand, so each shoe passes through twenty-five hands, who complete from the hide, as supplied by the currier, a hundred pairs of strong and well-finished shoes per day. All the details are performed by the ingenious application of the mechanic powers; and all the parts are characterised by precision, uniformity, and accuracy. As each man performs but one step in the process, which implies no knowledge of what is done by those who go before or follow him, so the persons employed are not shoemakers, but wounded soldiers, who are able to learn their respective duties in a few hours. The contract at which these shoes are delivered to Government is 6s. 6d. per pair, being at least 2s. less than what was paid previously for an unequal and cobbled article.[37]

    However, when the war ended in 1815, manual labour became much cheaper, and the demand for military equipment subsided. As a consequence, Brunel’s system was no longer profitable and it soon ceased business.[36]

    Americas

    Similar exigencies at the time of the Crimean War stimulated a renewed interest in methods of mechanization and mass-production, which proved longer lasting.[36] A shoemaker in Leicester, Tomas Crick, patented the design for a riveting machine in 1853. His machine used an iron plate to push iron rivets into the sole. The process greatly increased the speed and efficiency of production. He also introduced the use of steam-powered rolling-machines for hardening leather and cutting-machines, in the mid-1850s.[38]

    Advertisement in an 1896 issue of McClure’s for “The Regal”.
    Attila, a former shoe factory from the 1910s in TampereFinland

    The sewing machine was introduced in 1846, and provided an alternative method for the mechanization of shoemaking. By the late 1850s, the industry was beginning to shift towards the modern factory, mainly in the US and areas of England. A shoe-stitching machine was invented by the American Lyman Blake in 1856 and perfected by 1864. Entering into a partnership with McKay, his device became known as the McKay stitching machine and was quickly adopted by manufacturers throughout New England.[39] As bottlenecks opened up in the production line due to these innovations, more and more of the manufacturing stages, such as pegging and finishing, became automated. By the 1890s, the process of mechanisation was largely complete.

    On January 24, 1899, Humphrey O’Sullivan of Lowell, Massachusetts, was awarded a patent for a rubber heel for boots and shoes.[40]

    Globalization

    A process for manufacturing stitchless, that is, glued, shoes—AGO—was developed in 1910. Since the mid-20th century, advances in rubber, plastics, synthetic cloth, and industrial adhesives have allowed manufacturers to create shoes that stray considerably from traditional crafting techniques. Leather, which had been the primary material in earlier styles, has remained standard in expensive dress shoes, but athletic shoes often have little or no real leather. Soles, which were once laboriously hand-stitched on, are now more often machine stitched or simply glued on. Many of these newer materials, such as rubber and plastics, have made shoes less biodegradable. It is estimated that most mass-produced shoes require 1000 years to degrade in a landfill.[41] In the late 2000s, some shoemakers picked up on the issue and began to produce shoes made entirely from degradable materials, such as the Nike Considered.[42][43]

    In 2007, the global shoe industry had an overall market of $107.4 billion, in terms of revenue, and is expected to grow to $122.9 billion by the end of 2012.[needs update] Shoe manufacturers in the People’s Republic of China account for 63% of production, 40.5% of global exports and 55% of industry revenue. However, many manufacturers in Europe dominate the higher-priced, higher value-added end of the market.[44]

    Culture and folklore

    See also: Tradition of removing shoes in home

    Haines Shoe House in Hallam, Pennsylvania
    Sports shoes in Hong Kong
    Children’s shoes at school in Ladakh

    As an integral part of human culture and civilization, shoes have found their way into culture, folklore, and art. A popular 18th-century nursery rhyme is There was an Old Woman Who Lived in a Shoe. In 1948, Mahlon Haines, a shoe salesman in Hallam, Pennsylvania, built an actual house shaped like a work boot as a form of advertisement; the Haines Shoe House still stands today and is a popular roadside attraction.[45]

    Shoes also play an important role in the fairy tales Cinderella and The Red Shoes. In the movie adaption of the children’s book The Wonderful Wizard of Oz, a pair of red ruby slippers play a key role in the plot. The 1985 comedy The Man with One Red Shoe features an eccentric man wearing one normal business shoe and one red shoe that becomes central to the plot.

    Athletic sneaker collection has also existed as a part of urban subculture in the United States for several decades.[46] Recent decades have seen this trend spread to European nations such as the Czech Republic.[47] A Sneakerhead is a person who owns multiple pairs of shoes as a form of collection and fashion.

    In the Bible‘s Old Testament, the shoe is used to symbolize something that is worthless or of little value. In the New Testament, the act of removing one’s shoes symbolizes servitude. Ancient Semitic-speaking peoples regarded the act of removing their shoes as a mark of reverence when approaching a sacred person or place.[48] The removal of the shoe also symbolizes the act of giving up a legal right. In Hebrew custom, if a man chose not to marry his childless brother’s widow, the widow removed her brother-in-law’s shoe to symbolize that he had abandoned his duty. In Arab custom, the removal of one’s shoe also symbolized the dissolution of marriage.[48]

    In Arab culture, showing the sole of one’s shoe is considered an insult, and to throw a shoe and hit someone with it is considered an even greater insult. Shoes are considered to be dirty as they frequently touch the ground, and are associated with the lowest part of the body—the foot. As such, shoes are forbidden in mosques, and it is also considered unmannerly to cross the legs and display the soles of one’s shoes during conversation. This insult was demonstrated in Iraq, first when Saddam Hussein‘s statue was toppled in 2003, Iraqis gathered around it and struck the statue with their shoes.[49] In 2008, United States President George W. Bush had a shoe thrown at him by a journalist as a statement against the war in Iraq.[50] More generally, shoe-throwing or shoeing, showing the sole of one’s shoe or using shoes to insult are forms of protest in many parts of the world.[51][52]

    Empty shoes may also symbolize death. In Greek culture, empty shoes are the equivalent of the American funeral wreath. For example, empty shoes placed outside of a Greek home would tell others that the family’s son has died in battle.[53] The Shoes on the Danube Bank is a memorial in Budapest, Hungary, to honor the Jews who were killed by fascist Arrow Cross militiamen in Budapest during World War II.

    Construction

    “Insole” redirects here. For other uses, see Insole (disambiguation).

    “Shoe sole” redirects here. For the French pastry called shoe-soles, see palmier.

    See also: Shoe insert

    The basic anatomy of a shoe is recognizable, regardless of the specific style of footwear.

    All shoes have a sole, which is the bottom of a shoe, in contact with the ground. Soles can be made from a variety of materials, although most modern shoes have soles made from natural rubberpolyurethane, or polyvinyl chloride (PVC) compounds.[54] Soles can be simple—a single material in a single layer—or they can be complex, with multiple structures or layers and materials. When various layers are used, soles may consist of an insole, midsole, and an outsole.[55]

    The insole is the interior bottom of a shoe, which sits directly beneath the foot under the footbed (also known as sock liner). The purpose of the insole is to attach to the lasting margin of the upper, which is wrapped around the last during the closing of the shoe during the lasting operation. Insoles are usually made of cellulosic paper board or synthetic non woven insole board. Many shoes have removable and replaceable footbeds. Extra cushioning is often added for comfort (to control the shape, moisture, or smell of the shoe) or health reasons (to help deal with differences in the natural shape of the foot or positioning of the foot during standing or walking).[55]

    The outsole is the layer in direct contact with the ground. Dress shoes often have leather or resin rubber outsoles; casual or work-oriented shoes have outsoles made of natural rubber or a synthetic material like polyurethane. The outsole may comprise a single piece or may be an assembly of separate pieces, often of different materials. On some shoes, the heel of the sole has a rubber plate for durability and traction, while the front is leather for style. Specialized shoes will often have modifications on this design: athletic or so-called cleated shoes like soccer, rugby, baseball and golf shoes have spikes embedded in the outsole to improve traction.[55]

    The midsole is the layer in between the outsole and the insole, typically there for shock absorption. Some types of shoes, like running shoes, have additional material for shock absorption, usually beneath the heel of the foot, where one puts the most pressure down. Some shoes may not have a midsole at all.[55]

    The heel is the bottom rear part of a shoe. Its function is to support the heel of the foot. They are often made of the same material as the sole of the shoe. This part can be high for fashion or to make the person look taller, or flat for more practical and comfortable use.[55] On some shoes the inner forward point of the heel is chiselled off, a feature known as a “gentleman’s corner”. This piece of design is intended to alleviate the problem of the points catching the bottom of trousers and was first observed in the 1930s.[56] A heel is the projection at the back of a shoe which rests below the heel bone. The shoe heel is used to improve the balance of the shoe, increase the height of the wearer, alter posture or other decorative purposes. Sometimes raised, the high heel is common to a form of shoe often worn by women, but sometimes by men too. See also stiletto heel.

    The upper helps hold the shoe onto the foot. In the simplest cases, such as sandals or flip-flops, this may be nothing more than a few straps for holding the sole in place. Closed footwear, such as boots, trainers and most men’s shoes, will have a more complex upper. This part is often decorated or is made in a certain style to look attractive. The upper is connected to the sole by a strip of leather, rubber, or plastic that is stitched between it and the sole, known as a welt.[55]

    Most uppers have a mechanism, such as laces, straps with buckles, zippers, elastic, velcro straps, buttons, or snaps, for tightening the upper on the foot. Uppers with laces usually have a tongue that helps seal the laced opening and protect the foot from abrasion by the laces. Uppers with laces also have eyelets or hooks to make it easier to tighten and loosen the laces and to prevent the lace from tearing through the upper material. An aglet is the protective wrapping on the end of the lace.

    The vamp is the front part of the shoe, starting behind the toe, extending around the eyelets and tongue and towards back part of the shoe.

    The medial is the part of the shoe closest to a person’s center of symmetry, and the lateral is on the opposite side, away from their center of symmetry. This can be in reference to either the outsole or the vamp. Most shoes have shoelaces on the upper, connecting the medial and lateral parts after one puts their shoes on and aiding in keeping their shoes on their feet. In 1968, Puma SE introduced the first pair of sneakers with Velcro straps in lieu of shoelaces, and these became popular by the 1980s, especially among children and the elderly.[57][58]

    The toe box is the part that covers and protects the toes. People with toe deformities, or individuals who experience toe swelling (such as long-distance runners) usually require a larger toe box.[59]

    • Diagram of a typical dress shoe. The area labeled as the “Lace guard” is sometimes considered part of the quarter and sometimes part of the vamp.
    • Duration: 3 minutes and 10 seconds.3:10Subtitles available.CCA shoemaker making turnshoes at the Roscheider Hof Open Air Museum. English subtitles.
    • Cutaway view of a typical shoe.

    Types

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    Most types of shoes are designed for specific activities. For example, boots are typically designed for work or heavy outdoor use. Athletic shoes are designed for particular sports such as running, walking, or other sports. Some shoes are designed to be worn at more formal occasions, and others are designed for casual wear. There are also a vast variety of shoes designed for different types of dancing. Orthopedic shoes are special types of footwear designed for individuals with particular foot problems or special needs. Clinicians evaluate patient’s footwear as a part of their clinical examination. However, it is often based on each individual’s needs, with attention to the choice of footwear worn and if the shoe is adequate for the purpose of completing their activities of daily living.[60] Other animals, such as dogs and horses, may also wear special shoes to protect their feet as well.

    Depending on the activity for which they are designed, some types of footwear may fit into multiple categories. For example, Cowboy boots are considered boots, but may also be worn in more formal occasions and used as dress shoesHiking boots incorporate many of the protective features of boots, but also provide the extra flexibility and comfort of many athletic shoesFlip-flops are considered casual footwear, but have also been worn in formal occasions, such as visits to the White House.[61][62]

    Athletic

    Main article: Sneakers

    A pair of athletic running shoes
    Bowling centers maintain bowling shoes for rental to patrons, to prevent damage to lane approaches.

    Athletic shoes are designed for various sports activities, focusing on maximizing friction between the foot and the ground. These shoes often utilize materials like rubber to achieve this purpose.[63] The earliest athletic shoes, dating to the mid-19th century, were track spikes with metal cleats for increased traction. Over time, athletic shoe design evolved, with companies like Reebok and Adidas contributing to the development of modern athletic shoes. Notable innovations include rubber-soled athletic shoes and the introduction of specialized shoes for different sports, such as basketball and golf. More recently, minimalist shoes have gained popularity as barefoot running became popular by the late 20th and early 21st century, maintaining optimum flexibility and natural walking while also providing some degree of protection. Their purpose is to allow one’s feet and legs to feel more subtly the impacts and forces involved in running, allowing finer adjustments in running style.[64][16][65]

    The earliest rubber-soled athletic shoes date back to 1876 in the United Kingdom, when the New Liverpool Rubber Company made plimsolls, or sandshoes, designed for the sport of croquet. Similar rubber-soled shoes were made in 1892 in the United States by Humphrey O’Sullivan, based on Charles Goodyear‘s technology. The United States Rubber Company was founded the same year and produced rubber-soled and heeled shoes under a variety of brand names, which were later consolidated in 1916 under the name, Keds. These shoes became known as, “sneakers”, because the rubber sole allowed the wearer to sneak up on another person. In 1964, the founding of Nike by Phil Knight and Bill Bowerman of the University of Oregon introduced many new improvements common in modern running shoes, such as rubber waffle soles, breathable nylon uppers, and cushioning in the mid-sole and heel. During the 1970s, the expertise of podiatrists also became important in athletic shoe design, to implement new design features based on how feet reacted to specific actions, such as running, jumping, or side-to-side movement for men and women.[16]

    A pair of Converse All-Stars

    Shoes specific to the sport of basketball were developed by Chuck Taylor, and are popularly known as Chuck Taylor All-Stars. In 1969, Taylor was inducted into the Naismith Memorial Basketball Hall of Fame in recognition of this development, and in the 1970s, other shoe manufacturers, such as Nike, Adidas, Reebok, and others began imitating this style of athletic shoe.[66] In April 1985, Nike introduced its own brand of basketball shoe which would become popular in its own right, the Air Jordan, named after the then-rookie Chicago Bulls basketball player, Michael Jordan. The Air Jordan line of shoes sold $100 million in their first year.[67]

    As barefoot running became popular by the late 20th and early 21st century, many modern shoe manufacturers have recently designed footwear that mimic this experience, maintaining optimum flexibility and natural walking while also providing some degree of protection. Some of these shoes include the Vibram FiveFingers,[68] Nike Free,[69] and Saucony‘s Kinvara and Hattori.[70][71] Mexican huaraches are also very simple running shoes, similar to the shoes worn by the Tarahumara people of northern Mexico, who are known for their distance running abilities.[72] Wrestling shoes are also very light and flexible shoes that are designed to mimic bare feet while providing additional traction and protection.

    Many athletic shoes are designed with specific features for specific activities. One of these includes roller skates, which have metal or plastic wheels on the bottom specific for the sport of roller skating. Similarly, ice skates have a metal blade attached to the bottom for locomotion across iceSkate shoes have also been designed to provide a comfortable, flexible and durable shoe for the sport of skateboarding.[73] Climbing shoes are rubber-soled, tight-fitting shoes designed to fit in the small cracks and crevices for rock climbingCycling shoes are similarly designed with rubber soles and a tight fit, but also are equipped with a metal or plastic cleat to interface with clipless pedals, as well as a stiff sole to maximize power transfer and support the foot.[74] Some shoes are made specifically to improve a person’s ability to weight train.[75] Sneakers that are a mix between an activity-centered and a more standard design have also been produced: examples include roller shoes, which feature wheels that can be used to roll on hard ground, and Soap shoes, which feature a hard plastic sole that can be used for grinding.

    Boot

    Main article: Boot

    A pair of steel-toed safety boots

    Boots are a specialized type of footwear that covers the foot and extends up the leg. They serve both functional and fashion purposes, offering protection from elements like water, snow, and mud while also being a fashion statement.

    Cowboy boots, for instance, are known for their distinctive style and are popular among cowboys in the western United StatesHiking boots, on the other hand, are designed for comfort and support during long walks in rough terrains. Snow boots are ideal for wet or snowy weather, providing warmth and protection against the elements. Additionally, boots are used in specialized activities like skiing, ice skating, and climbing due to their unique features tailored to these activities.[76][77][78][79]

    Boots may also be attached to snowshoes to increase the distribution of weight over a larger surface area for walking in snowSki boots are a specialized snow boot which are used in alpine or cross-country skiing and designed to provide a way to attach the skier to his/her skis using ski bindings. The ski/boot/binding combination is used to effectively transmit control inputs from the skier’s legs to the snow. Ice skates are another specialized boot with a metal blade attached to the bottom which is used to propel the wearer across a sheet of ice.[80] Inline skates are similar to ice skates but with a set of three to four wheels in lieu of the blade, which are designed to mimic ice skating on solid surfaces such as wood or concrete.[81]

    Boots are designed to withstand heavy wear to protect the wearer and provide good traction. They are generally made from sturdy leather uppers and non-leather outsoles. They may be used for uniforms of the police or military, as well as for protection in industrial settings such as mining and construction. Protective features may include steel-tipped toes and soles or ankle guards.[82]

    Dress and casual

    Dress shoes are characterized by their smooth leather uppers, leather soles, and sleek design, suitable for formal occasions. In contrast, casual shoes have sturdier leather uppers, non-leather outsoles, and a wider profile for everyday wear. Some dress shoe designs are unisex, while others are specific to men or women.

    Men’s

    This male dress shoe, known as a derby shoe, is distinguished by its open lacing.

    Men’s dress shoes include styles like Oxfords, Derbies, Monk-straps, and Slip-ons, each with its unique characteristics in terms of lacing, decoration, and formality.

    Women’s

    High heel sandals

    Women’s shoes cover a wide range of styles, including high heels, mules, slingbacks, ballet flats, and court shoes, with high-heeled footwear being a popular choice for formal occasions.

    Unisex

    • Clog
    • Platform shoe: shoe with very thick soles and heels
    • Sandals: open shoes consisting of a sole and various straps, leaving much of the foot exposed to air. They are thus popular for warm-weather wear, because they let the foot be cooler than a closed-toed shoe would.
    • Saddle shoe: leather shoe with a contrasting saddle-shaped band over the instep, typically white uppers with black “saddle”.
    • Slip-on shoe: a dress or casual shoe without shoelaces or fasteners; often with tassels, buckles, or coin-holders (penny loafers).
    • Boat shoes, also known as “deck shoes”: similar to a loafer, but more casual. Laces are usually simple leather with no frills. Typically made of leather and featuring a soft white sole to avoid marring or scratching a boat deck. The first boat shoe was invented in 1935 by Paul A. Sperry.
    • Slippers: For indoor use, commonly worn with pajamas.

    Dance

    Dancers use a variety of footwear depending on the style of dance and the surface they will be dancing on. Pointe shoes, for instance, are designed for ballet dancing, featuring a stiffened toe box and hardened sole to allow dancers to stand on the tips of their toes. Ballet shoes, on the other hand, are soft, pliable shoes made of canvas or leather, providing flexibility and comfort for ballet dancing. Other dance shoe types include jazz shoes, tango, and flamenco shoes, ballroom shoes, tap shoes, character shoes, and foot thongs, each designed to meet the specific needs of different dance styles.

    Orthopedic

    See also: Diabetic shoe

    Orthopedic heavy duty black leather school uniform shoes

    Orthopedic shoes are specially designed to alleviate discomfort associated with various foot and ankle disorders, such as blisters, bunions, calluses, and plantar fasciitis. They are also used by individuals with diabetes, unequal leg length, or children with mobility issues.[83][84][85] These shoes typically feature a low heel, wide toe box, and firm heel for added support. Some orthopedic shoes come with removable insoles or orthotics to provide extra arch support.[16]

    Measures and sizes

    Main article: Shoe size

    World’s largest pair of shoesRiverbank Center, Philippines—5.29 metres (17.4 ft) long and 2.37 metres (7 ft 9 in) wide, equivalent to a French shoe size of 75.

    Shoe sizes are indicated by a numerical value representing the length of the shoe, with different systems used globally. European sizes are measured in Paris Points, while the UK and American units are based on whole-number sizes spaced at one barleycorn (1/3 inch) with UK adult sizes starting at size 1 = 8+23 in (22.0 cm). In the US, this is size 2. Men’s and women’s shoe sizes often use different scales[citation needed], and some systems are measured using a Brannock Device which considers the width and length size values of the feet. The Mondopoint system, introduced in the 1970s by International Standard ISO 2816:1973 “Fundamental characteristics of a system of shoe sizing to be known as Mondopoint” and ISO 3355:1975 “Shoe sizes – System of length grading (for use in the Mondopoint system)” includes measurements of both length and width of the foot.[86][87]

    Toddler-sized shoe.

    Accessories

    Various accessories are used to enhance the functionality and comfort of shoes. Crampons provide traction on icy terrain, foam taps adjust shoe fit, heel grips prevent slipping, and ice cleats enhance stability on slippery surfaces. Overshoes protect shoes from rain and snow, while shoe bags are used for storage. Shoe brushes and polishing cloths maintain shoe appearance, while shoe inserts offer additional comfort.

    Removal of shoes

    “Plzz REMOVE YOUR SHOES” sign at entrance to stupaNubra, India

    Main article: Tradition of removing shoes in the home and houses of worship

    In many places in the world, shoes are removed when moving from exteriors to interiors, particularly in homes[88][89] and religious buildings.[90] In many Asian countries, outdoor shoes are exchanged for indoor shoes or slippers.[91] Fitness center etiquette encourages the exchange of outdoor shoes for indoor shoes, both to prevent dirt and grime from being transferred to the equipment and to ensure that participants are wearing the right shoes for their activities