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Los Angeles,

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Los Angeles is the second largest city in the United States in terms of population and one of the largest in terms of area. It is the center of a five-county metropolitan area and is considered the prototype of the future metropolis—a city on the cutting edge of all of the advantages and the problems of large urban areas. The glamour of Hollywood, Beverly Hills, the Sunset Strip, and the famous beaches have added to Los Angeles's reputation as a California paradise and have contributed to the area's phenomenal growth. Los Angeles is a city of fascinating diversity, incorporating one of the largest Hispanic populations in the United States, a major Asian community, and sizable populations of nearly every ethnic background in the world. Los Angeles is also a center of international trade and banking, manufacturing, and tourism. The city offers something for everyone in its large conglomeration of separate and very different districts: a sleek, ultra-modern downtown, miles of beautiful beaches, mansions and stunning canyon homes built with opulent luxury, and some of the world's most glamorous shopping and dining. Beneath the glitter, though, is a troubled, racially divided city, with extremely high unemployment rates for young African Americans and Latinos.

The City in Brief

Founded: 1781 (incorporated 1850)
Head Official: Mayor James K. Hahn (D) (since 2001)
City Population
1980: 2,966,850
1990: 3,485,557
2000: 3,694,820
2003 estimate: 3,819,951
Percent change, 1990–2000: 5.9%
U.S. rank in 1980: 3rd
U.S. rank in 1990: 2nd (State rank: 1st)
U.S. rank in 2000: 2nd (State rank: 1st)
Metropolitan Area Population (PMSA)
1980: 7,478,000
1990: 8,863,000
2000: 9,519,338
Percent change, 1990–2000: 9.3%
U.S. rank in 1980: 2nd (CMSA)
U.S. rank in 1990: 2nd (CMSA)
U.S. rank in 2000: 2nd (CMSA)
Area: 469.1 square miles (2000)
Elevation: 340 feet above sea level
Average Annual Temperature: 63.9° F
Average Annual Precipitation: 17 inches
Major Economic Sectors: Services; manufacturing; government; finance, insurance, and real estate
Unemployment Rate: 5.8% (January 2005)
Per Capita Income: $26,733 (1999)
2002 FBI Crime Index Total: 190,992
Major Colleges and Universities: University of California, Los Angeles (UCLA), University of Southern California (USC), California Institute of Technology
Daily Newspaper:Los Angeles Times
 
 
Dictionary: Los An·ge·les  (ăn'jə-ləs, -lēz', ăng'gə-ləs) pronunciation (Abbr. LA)

A city of southern California on the Pacific Ocean in a widespread metropolitan area. Founded by the Spanish in 1781, it served several times as a colonial capital before incorporation in 1850. Its real growth began after the coming of the railroads in the 1870s and 1880s and the discovery of oil in the 1890s. Today it is a major shipping, manufacturing, communications, financial, and distribution center noted for its entertainment industry. Population: 3,850,000.

 

 

City (pop., 2000: 3,694,820), southern California, U.S. The second largest city in the U.S., it is situated between the San Gabriel Mountains and the Pacific Ocean. Bisected by the Santa Monica Mountains, which separate the neighbourhoods of Hollywood, Beverly Hills, and Pacific Palisades from the San Fernando Valley, it is near the San Andreas Fault, and earthquakes are frequent. It began in 1771 as a Spanish mission; in 1781 settlers claimed the land as El Pueblo de la Reyna de los Angeles (the Town of the Queen of the Angels). Taken by U.S. forces in the Mexican War, it prospered in the wake of the 1849 gold rush. Incorporated in 1850, the city grew rapidly after the arrival of the railroads in 1876 and 1885. In 1913 an aqueduct was built to supply it with water from the slopes of the Sierra Nevada. It was struck by a major earthquake in 1994. Sites of interest include early Spanish missions, the Getty Museum, the Los Angeles County Museum of Art, and the Museum of Contemporary Art. Educational institutions include the University of Southern California, Occidental College, and the University of California at Los Angeles.

For more information on Los Angeles, visit Britannica.com.

 

Located in Southern California, Los Angeles is a world-class city featuring a diverse economy based on international trade, high-technology production, and the entertainment and tourist industry. As of the 2000 census, Los Angeles had a population of 3,694,820, making it the second largest city in the United States, as well as one of the most culturally, ethnically, and racially diverse places in the world.

Early History

The region was originally the home of Native American peoples such as the Tongvas and the Chumashes. A Spanish expedition led by Gaspar de Portolá passed through the area in late July and early August of 1769. On 2 August they crossed the local river and named it after the Franciscan feast day celebrated on that date: El Rio de Nuestra Señora la Reina de los Angeles de la Porciúncula (The River of Our Lady the Queen of the Angels of Porciuncula). In 1781 the Spanish founded an agricultural pueblo, naming it after the river. By the 1830s the city had become the principal urban center of Mexican California. Los Angeles's dominance was shattered by the discovery of gold in Northern California in 1848 and the subsequent gold rush, events that made San Francisco the leading city in California.

Well into the 1870s Los Angeles retained strong elements of its Hispanic past and a modest economy rooted in cattle raising and viticulture. However, the arrival of the Southern Pacific Railroad in 1876 and the Santa Fe Railroad in 1886 sparked explosive development. During the 1880s Los Angeles experienced a speculative land boom. While the initial boom collapsed fairly quickly, it left a solid infrastructure of development that supported the extraordinary population growth of the next few decades. Having only 11,183 residents in 1880, in 1920 Los Angeles boasted a population of 576,673. The largest number of settlers were from the midwestern states, relatively affluent and overwhelmingly native born and Protestant. They were drawn to the city by the promise of a pleasant, temperate climate and a more relaxed lifestyle. Many people also flocked to the region as tourists and health seekers, similarly drawn by the city's unique climate and location. While tourism and demographic growth fueled economic expansion, many civic leaders remained concerned about the lack of industrial diversity and the potential limitations upon continued population expansion.

Economic Expansion in the Twentieth Century

In the late nineteenth and early twentieth centuries the city witnessed significant infrastructure development; the city greatly improved its public transportation system through massive federal and local investments in the harbor at San Pedro and the creation of a far-flung system of interurban streetcars. At the same time, the city engaged on an ambitious quest to secure an adequate water supply. Faced with limitations imposed by a relatively arid climate, the municipality sought to exploit the water resources of the Owens Valley, located over two hundred miles to the north. With the completion of the Los Angeles Aqueduct in 1913, the city successfully obtained the water needed for future growth. The utilization of the aqueduct as a source of hydroelectric power also gave the city a plentiful supply of cheap electricity.

Continuing population growth and an increasingly diversified economy promoted Los Angeles's emergence as a key urban center for California. The discovery of major petroleum deposits in the 1890s led to the creation of refineries and the spread of drilling operations. At the turn of the century, the burgeoning movie industry took root there and quickly became a major employer. Equally significant were the factories established by national corporations. In 1914 Ford established a branch manufacturing plant in the region and other automobile and tire manufactures soon followed. The Southern California region also became the center of the emerging Aircraft Industry, including firms such as Hughes, Douglas, Lockheed, and Northrop. Even during the Great Depression of the 1930s Los Angeles continued to grow, with continued supplies of cheap water and power being guaranteed by the completion of Hoover Dam in 1936. To take advantage of these resources, the city helped create the Metropolitan Water District of Southern California.

Government spending associated with World War II and the subsequent Cold War offered even greater opportunities. The growing demand for military airplanes sparked a huge expansion of the aircraft industry. By the 1950s federal monies also flowed into businesses manufacturing rockets and electronics, leading to the evolution of a complex and profitable aerospace and high-technology sector. During this same period the development of an extensive freeway system facilitated the continued suburbanization of population and industry.

Diversity, Conflict, and Modern Problems

Over the course of the twentieth century, Los Angeles increasingly developed a complex social mosaic of cultures and peoples. By the 1930s Los Angeles had 368,000 people of Mexican origin, more than any city except Mexico City. At the same time Los Angeles became home to a large Japanese population, and after World War II, growing numbers of African Americans. While these communities enjoyed the economic opportunities available in the region, they were also often subjected to considerable discrimination. Residential segregation helped create overcrowded minority communities that suffered from minimal access to basic public services, including education and health care, and limited access to political representation.

The 1940s saw rising levels of social and cultural tension. During the war years the city's Japanese American communities were profoundly disrupted by a 1942 federal order to exclude people of Japanese origin from the West Coast. Forced to abandon or sell their homes and businesses, they were relocated to hastily built inland camps. Wartime tensions were manifested as well in two ugly outbursts that targeted the city's growing Hispanic population, the Sleepy Lagoon Trial and the Zoot Suit Riots. In the postwar years the city's African American community became particularly frustrated by de facto segregation and declining economic opportunities. The growing suburbanization of industry and the lack of public transportation made it difficult for African Americans to find jobs, leading to relatively high levels of unemployment. This was compounded by a hostile relationship with the Los Angeles Police Department. These frustrations exploded in 1965 with the Watts Riots, which left large parts of South Central Los Angeles in ruins.

There were other troubling undercurrents to the city's rapid development. Located in a geologically active region, Earthquakes have long been a concern, but increasing population density progressively increased the possibility for a truly massive disaster. Following the 1933 Long Beach earthquake the city reevaluated local building codes; changes were made that helped limit the destruction caused by the Sylmar earthquake in 1971 and the Northridge earthquake of 1994. However, there remain intrinsic limits to what engineering can accomplish.

Explosive population growth, coupled with a reliance on the automobile and a strong preference for single-family detached homes, contributed to growing problems of Air Pollution, traffic congestion, and spiraling housing costs. Efforts to cope with these problems have seen mixed results. The creation of the South Coast Air Quality Management District in 1975 undoubtedly helped ease problems of air pollution, but Los Angeles's environment remains seriously contaminated. Beginning in 1990 the city also began an ambitious project to improve its public transportation infrastructure by building a light-rail system, but this project has been repeatedly plagued by delays and cost overruns. The growing strain on public services, particularly on police protection and education, inspired significant civic discontent, highlighted by the efforts of the San Fernando Valley to gain municipal autonomy; a movement that, if successful, could halve the city's population and area.

The 1992 riots in South Central Los Angeles similarly indicate continued social tension within the city's racial and ethnic communities. Compounding these problems have been setbacks to the economy. Declining military spending in the late 1980s forced the downsizing of many aerospace firms, while growing competition from other high-tech manufacturing centers, such as Silicon Valley, and the rising cost of living have discouraged some businesses from locating in Los Angeles and have even prompted their flight to other locales. At the same time, the branch automobile and tire factories established in the 1920s and 1930s have been closed.

Continued Promise and Growth

Despite these persistent problems, Los Angeles still remains a city of opportunity for many people. Since the 1960s the city has become a key gateway for immigrants entering the United States. Much of this migration derives from Latin America and Asia, but it includes people from virtually every corner of the world. In some instances this extraordinary diversity has fueled social tensions, but the city has also benefited from the labor, knowledge, and capital provided by immigrants. The overt discrimination of the early twentieth century has waned and minority groups have gained a greater public voice. Indicative of this was the election of Mayor Tom Bradley in 1973. One of the first African Americans to serve as a mayor of a major U.S. city, Bradley held this position for twenty years until he retired in 1993. Since the late 1940s Mexican Americans have similarly gained increasing recognition in local government although by the 2000s they, like the population of Asian origin, remained somewhat underrepresented.

Economically, high-technology manufacturing continues to play an important role, although it has been supplemented in part by low-tech industries that take advantage of the city's deep pool of immigrant labor. The entertainment and tourism industries also remain important employers in the region, while the city's strategic location has made it a major financial and commercial nexus for the emerging Pacific Rim economy. The volume of container traffic handled by Los Angeles's harbor facilities has steadily grown, making this one of the largest ports in the world. Los Angeles has truly become a world-class city, reflecting both the hopes and frustrations of the age.

Bibliography

Davis, Mike. City of Quartz: Excavating the Future in Los Angeles. New York: Vintage Books, 1992.

Fogelson, Robert M. The Fragmented Metropolis: Los Angeles, 1850–1930. Cambridge, Mass.: Harvard University Press, 1967.

George, Lynell. No Crystal Stair: African-Americans in the City of Angels. New York: Verso Press, 1992.

Klein, Norman, and Martin G. Schiesel, eds. 20th Century Los Angeles: Power, Promotion, and Social Conflict. Claremont, Calif.: Regina Books, 1990.

Ovnick, Merry. Los Angeles: The End of the Rainbow. Los Angeles: Balcony Press, 1994.

Pitt, Leonard, and Dale Pitt. Los Angeles A to Z: An Encyclopedia of the City and County. Berkeley: University of California Press, 1997.

Reiff, David. Los Angeles: Capital of the Third World. New York: Simon and Schuster, 1991.

Waldinger, Roger, and Mehdi Bozorgmehr, eds. Ethnic Los Angeles. New York: Russell Sage Foundation, 1996.

 
Spotlight: Los Angeles

From our Archives: Today's Highlights, September 4, 2006

On this date 225 years ago, Spanish colonists founded a farming settlement in southern California and named it El Pueblo de Nuestra Señora Reina de Los Angeles de Porciuncula ("The Town of Our Lady Queen of the Angels of the Small Portion"). The name was later shortened to Los Angeles. The town became the capital of the Spanish colonial province of Alta California and was a cattle-ranching center. In 1846, US forces captured Los Angeles from the Mexicans. Now the second most populous city in the US, Los Angeles is the world's movie and TV entertainment center.
 
(lôs ăn'jələs, lŏs, ăn'jəlēz') , city (1990 pop. 3,485,398), seat of Los Angeles co., S Calif.; inc. 1850. A port of entry on the Pacific coast, with a fine harbor at San Pedro Bay, it is the second largest U.S. city in population and one of the largest in area. Two mountain ranges, the Santa Monica and Verdugo, cut across the center of the city.

Economy and Transportation

Los Angeles is a shipping, industrial, communication, financial, fashion, and distribution center for the W United States and much of the Pacific Rim. It is also the motion picture, television, radio, and recording capital of the United States, if not the world, housing numerous studios. Once an agricultural distribution center, Los Angeles is a leading producer of clothing and textiles, aircraft, computers and software, paper, toys, glass, furniture, wire, biomedical products, electrical and electronic machinery, pharmaceuticals, petrochemicals, and fabricated metal. Tourism, printing and publishing, food processing, and oil refining are also important.

Los Angeles has one of the busiest ports in the United States, with roughly half of its commerce coming from other nations, and its international airport is one of the world's busiest. The metropolitan area's vast freeway system has made Los Angeles the archetypal auto-dependent urban area. The huge number of motor vehicles, combined with the city's valley location, often creates dangerously high smog levels. A light-rail system (opened in 1990) and buses alleviate freeway congestion only a little; a new subway (completed 2000) also provides insignificant relief.

Maintaining an adequate water supply has long been a problem for Los Angeles. The city obtains most of its water from California's Central Valley to the north. In 1992 the city ended protracted litigation with environmentalists when it agreed to curtail water diversion in certain areas until ecological recovery had been achieved.

Communities of the Metropolitan Area

The vast Los Angeles metropolitan area covers five counties (Los Angeles, Orange, Riverside, San Bernardino, and Ventura) and encompasses 34,000 sq mi (88,000 sq km) with over 14.5 million people. As Los Angeles rapidly expanded throughout the 20th cent., it absorbed numerous communities and enclosed independent municipalities. Among the communities now part of Los Angeles are Central City, Hollywood, San Pedro, Sylmar, Watts, Westwood, Bel-Air, and Boyle Heights. Independent municipalities surrounded by Los Angeles include Santa Monica, Beverly Hills, and San Fernando. Incorporated cities in the broader metropolitan region with populations of 80,000 or more include Alhambra, Anaheim, Burbank, Downey, El Monte, Fullerton, Garden Grove, Glendale, Huntington Beach, Irvine, Inglewood, Lakewood, Long Beach, Moreno Valley, Norwalk, Oceanside, Ontario, Orange, Oxnard, Pasadena, Pomona, Rancho Cucamonga, Riverside, San Bernardino, Santa Ana, Santa Clarita, Santa Monica, Simi Valley, Thousand Oaks, and Torrance, in addition to Los Angeles itself.

Points of Interest

In Los Angeles are the Los Angeles County Museum of Art; the Museum of Contemporary Art; and historical, movie, industrial, and science museums. The large Music Center includes the Dorothy Chandler Pavilion (1964), with four theaters housing the Center Theatre Group, Los Angeles Opera, and Los Angeles Master Chorale; the Ahmanson Theater; the Mark Taper Forum; and, across Grand Ave., Frank Gehry's Walt Disney Concert Hall (2003), home of the Los Angeles Philharmonic. Also downtown is the monumental Our Lady of the Angels cathedral (2002), designed by Raphael Moneo, and Caltrans District 7 headquarters, designed by Thom Mayne. Los Angeles has botanical gardens and many parks, including Griffith Park, with a zoo and an observatory (including a planetarium). The La Brea Tar Pits are famous for Ice Age fossils. The motion-picture and television industries, the proximity of many resorts, theme parks, and beaches, and a climate that encourages year-round outdoor recreation attract millions of tourists annually. Other area attractions include the Santa Anita and Hollywood Park racetracks, Knott's Berry Farm, and Disneyland (at Anaheim). Among the city's many educational institutions are the Univ. of Southern California; the Univ. of California, Los Angeles; two California State Univ. campuses (Los Angeles and Northridge); Occidental College; Loyola Marymount Univ.; Pepperdine Univ.; and the Colburn School of Performing Arts.

In 1982 the Los Angeles area gained its second National Football League franchise (the other being the Rams) when the Oakland Raiders moved to the city. In 1995, however, the Rams moved to St. Louis, and the Raiders subsequently returned to Oakland, Calif., leaving the city without a professional football team. In baseball, the National League's Los Angeles Dodgers and the American League's Anaheim Angels represent the area. The metropolitan area also has two National Basketball Association teams (the Lakers and the Clippers) and two National Hockey League teams (the Kings and Anaheim's Mighty Ducks).

History

The site of the city was visited by the Spanish explorer Gaspar de Portolá in 1769, and in 1781 El Pueblo de Nuestra Señora de los Angeles de Porciuncula (Town of Our Lady the Queen of the Angels of Porciuncula) was founded. Located on the Los Angeles River, the city served several times as the capital of the Spanish colonial province of Alta California and was a cattle-ranching center. In 1846 Los Angeles was captured from the Mexicans by U.S. forces. The arrival of the railroads (Southern Pacific in 1876; Santa Fe in 1885) and the discovery of oil in the early 1890s stimulated expansion, as did the development of the motion-picture industry in the early 20th cent.

During World War II Los Angeles boomed as a center for the production of war supplies and munitions, and thousands of African Americans migrated to Los Angeles to fill factory jobs. After the war massive suburban growth made the city enormously prosperous, but also created or exacerbated a variety of urban problems. In 1965, the African-American community of Watts was the site of six days of race rioting that left 34 people dead and caused over $200 million in property damage. Tom Bradley, the city's first black mayor, was first elected in 1973.

In the 1970s and 1980s Los Angeles experienced dramatic growth through immigration. In 1990 the Hispanic population of metropolitan Los Angeles was almost 5 million (almost 40% of the population) and the area's Asian population was over 1.3 million. In addition to an already well-established Japanese-American community, recent immigration has come from China, South Korea, Vietnam, Cambodia, the Philippines, and other nations.

In the 1980s, violent gang warfare over the illegal drug (especially “crack” cocaine) trade became a serious problem for law enforcement officials. In Apr., 1992, the acquittal of four white Los Angeles police officers on charges of police brutality (they had been videotaped beating a black motorist) touched off race riots in south-central Los Angeles and other areas. Fifty-eight people died, thousands were arrested, and property damage totaled approximately $1 billion. Natural disasters have also taken their toll. Portions of Los Angeles are subject to wildfires and rockslides, and the 1994 earthquake centered in Northridge in N Los Angeles, which killed 72 and cost $25 billion, was only the latest to have caused damage to the city and surrounding areas. Attention was again riveted on Los Angeles during the O. J. Simpson trial, which ended in acquittal in 1995. In 2005, Antonio Villaraigosa was elected mayor, becoming the first Hispanic to hold the post since 1872.

Bibliography

See R. M. Fogelson, The Fragmented Metropolis (1967); R. Banham, Los Angeles (1973); R. Steiner, Los Angeles: The Centrifugal City (1982); H. J. Nelson, The Los Angeles Metropolis (1982); S. L. Bottles, Los Angeles and the Automobile: The Making of the Modern City (1987); M. Davis, Los Angeles (1991) and Ecology of Fear: Los Angeles and the Imagination of Disaster (1998); B. Gumprecht, The Los Angeles River (1999).


 
Geography: Los Angeles
(lawss an-juh-luhs)

City in southern California, sprawling over nearly five hundred square miles.

  • Second most populous city in the United States.
  • A center of the entertainment industry; Hollywood is a district of Los Angeles.
  • Los Angeles suffers from serious smog pollution created by industry and large numbers of automobiles.
  • The scene of the Watts Riots in 1965 and of another serious riot in 1992, triggered by the acquittal of white police officers accused of beating an African-American man named Rodney King.

 
Weather: Los Angeles, CA
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Last updated July 25, 2008 12:49 (EST)

 
Local Time: Los Angeles, United States

Local Time: Jul 25, 9:58 AM

 
Maps: Los Angeles

 
Wikipedia: Los Angeles, California
City of Los Angeles
Skyline of City of Los Angeles
Official flag of City of Los Angeles
Flag
Official seal of City of Los Angeles
Seal
Nickname: The City of Angels, L.A.
Location within Los Angeles County in the state of  California
Location within Los Angeles County in the state of California
Coordinates: 34°03′N 118°15′W / 34.05, -118.25
State California
County Los Angeles County
Settled 1781
Incorporated April 4 1850
Government
 - Type Mayor-Council
 - Mayor Antonio Villaraigosa
 - City Attorney Rocky Delgadillo
 - Governing body City Council
Area
 - City   sq mi (km²)
 - Land   sq mi ( km²)
 - Water   sq mi ( km²)  5.8%
 - Urban   sq mi ( km²)
Elevation   ft ( m)
Population (2006)
 - City
 - Density /sq mi (/km²)
 - Metro
 - Demonym
Time zone PST (UTC-8)
 - Summer (DST) PDT (UTC-7)
Website: www.ci.la.ca.us/

Los Angeles (IPA: /lɒˈsændʒəlɨs/ in English and IPA: [loˈsaŋxeles] in Spanish) is the largest city in the state of California by population and the second most populous city in the United States.[1] Often abbreviated as L.A., it is an alpha world city having an estimated 2006 population of 3,849,378[2] and spanning 469.1 square miles (1,214.9 square kilometers). The Los Angeles–Long Beach–Santa Ana metropolitan area is the estimated home to nearly 13 million people.[3] Los Angeles is the seat of Los Angeles County and its inhabitants are referred to as "Angelenos", though the correct Spanish spelling is ''Angelinos".

Los Angeles was founded in 1781 by Spanish governor Felipe de Neve as El Pueblo de Nuestra Señora la Reina de los Ángeles de Porciúncula (The Village of Our Lady, the Queen of the Angels of Porciúncula). It became a part of Mexico in 1821 following independence from Spain and then a part of the United States in 1848 at the conclusion of the Mexican-American War. It was incorporated as a municipality on April 4 1850—five months before California achieved statehood.

As an alpha city, Los Angeles is one of the world's centers of culture, technology, and international trade, and is home to world-renowned institutions in a broad range of professional and cultural fields. The city and its immediate vicinity lead the world in producing popular entertainment—such as motion picture, television, and recorded music—which forms the base of Los Angeles' international fame and global status.

History

The old city plaza, 1869.
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The old city plaza, 1869.

The Los Angeles coastal area was first settled by the Tongva (or Gabrieleños) and Chumash Native American tribes thousands of years ago. The first Europeans arrived in 1542 under Joao Cabrilho, a Portuguese explorer who claimed the area as the City of God for the Spanish Empire but continued with his voyage and did not establish a settlement.[4] The next contact would not come until 227 years later when Gaspar de Portola, together with Franciscan missionary Juan Crespi, reached the present site of Los Angeles on August 2 1769. Crespi noted that the site had the potential to be developed into a large settlement.[5]

In 1771, Franciscan friar Junipero Serra had the Mission San Gabriel Arcangel built near Whittier Narrows in what is now called San Gabriel Valley.[6] In 1777, the new governor of California, Felipe de Neve, recommended to the viceroy of New Spain that the site previously recommended by Juan Crespi be developed into a pueblo. The town was founded on September 4, 1781 by a group of 44 settlers and was named "El Pueblo de Nuestra Señora la Reina de los Ángeles del Río de Porciúncula," ("The Town of Our Lady the Queen of the Angels on the River Porciúncula").[7] These settlers were of Filipino, Native American, African, and Spanish ancestry, with two-thirds being mestizo or mulatto; a majority of the settlers had at least partial African ancestry.[8] The settlement remained a small ranch town for decades, but by 1820 the population had increased to about 650 residents.[9] Today, the pueblo is commemorated in the historic district Olvera Street, the oldest part of Los Angeles.[10]

New Spain achieved its independence from the Spanish Empire in 1821, and the pueblo continued as a part of Mexico. Mexican rule ended during the Mexican-American War, when Americans took control from the Californios after a series of battles, culminating in the signing of the Treaty of Cahuenga on January 13, 1847. Later, with the Treaty of Guadalupe Hidalgo in 1848, the Mexican government formally ceded Alta California and other territories to the United States.

Railroads arrived when the Southern Pacific completed its line to Los Angeles in 1876.[11] Oil was discovered in 1892, and by 1923 Los Angeles was producing one-quarter of the world's petroleum.[12] By 1900, the population had grown to more than 100,000 people [13], which began to put pressure on the city's water supply.[14] The 1913 completion of the Los Angeles aqueduct under the supervision of William Mulholland assured the continued growth of the city. In 1915, Los Angeles began the annexation of dozens of neighboring communities without water supplies of their own.

In the 1920s, the motion picture and aviation industries flocked to Los Angeles. In 1932, with population surpassing one million[15], the city hosted the Summer Olympics. This period also saw the arrival of exiles from the increasing pre-war tension in Europe, including Thomas Mann, Fritz Lang, Bertolt Brecht, Arnold Schoenberg, and Lion Feuchtwanger. World War II brought new growth and prosperity to the city, although many of its Japanese-American residents were transported to internment camps for the duration of the war. The post-war years saw an even greater boom as urban sprawl expanded the city into the San Fernando Valley.[16]

Much like the rest of the United States, Los Angeles in the 1960s and early 1970s had to come to terms with changing race relations; the Watts riots in 1965, the high school walkout by Chicano students in 1968, and the 1970 Chicano Moratorium were representative of the racial strife present within the city. In 1969, Los Angeles became one of the birthplaces of the Internet, as the first ARPANET transmission was sent from UCLA to SRI in Menlo Park.[17]

In 1984, it hosted the Summer Olympics for the second time. The rest of the 1980s was plagued by an increase in gang violence. Racial tensions surfaced again in 1991 with the Rodney King controversy and the large-scale riots that followed. In 1994, the Northridge earthquake shook the city, causing 72 deaths.[18] Also that year, O.J. Simpson led police on a slow-speed chase before surrendering to face murder charges in the deaths of his ex-wife and her friend. Despite propositions for the San Fernando Valley and Hollywood sections to secede from the city in 2002, residents voted down secession.[19] The 2000s has seen a rise in urban redevelopment and gentrification in various parts of the city, most notably Echo Park and Downtown.[20]

Geography

See also: Los Angeles Basin, Los Angeles County, California, Maps of Los Angeles, California, and List of area codes in Southern California

Topography

Los Angeles has a total area of 498.3 square miles (1,290.6 km²), comprising 469.1 square miles (1,214.9 km²) of land and 29.2 square miles (75.7 km²) of water. This makes it the 14th largest city in land area in the United States.[21] The city extends for 44 miles (71 km) longitudinally and for 29 miles (47 km) latitudinally. The perimeter of the city is 342 miles (550 km).

View of the Palos Verdes Peninsula with Los Angeles in the distance.
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View of the Palos Verdes Peninsula with Los Angeles in the distance.

The highest point in Los Angeles is Mount Lukens, also called Sister Elsie Peak. Located at the far reaches of the northeastern San Fernando Valley, it reaches a height of 5,080 ft (1,548 m). The major river is the Los Angeles River, which begins in the Canoga Park district of the city and is largely seasonal. The river is lined in concrete for almost its entire length as it flows through the city into nearby Vernon on its way to the Pacific Ocean.

Geology

Los Angeles is subject to earthquakes due to its location in the Pacific Ring of Fire. The geologic instability produces numerous fault lines both above and below ground, which altogether cause approximately 10,000 earthquakes every year.[22] One of the major fault lines is the San Andreas Fault. Located at the boundary between the Pacific Plate and the North American Plate, it is predicted to be the source of Southern California's next big earthquake.[23] Major earthquakes to have hit the Los Angeles area include the 1994 Northridge earthquake, the 1987 Whittier Narrows earthquake, the 1971 San Fernando earthquake near Sylmar, and the 1933 Long Beach earthquake. Nevertheless, all but a few quakes are of low intensity and are not felt.[24] Parts of the city are also vulnerable to Pacific Ocean tsunamis; harbor areas were damaged by waves from the Great Chilean Earthquake in 1960.[25]

Climate

The city is situated in a Mediterranean climate zone (Köppen climate classification Csb on the coast, Csa inland), experiencing mild, somewhat wet winters and warm to hot summers. Breezes from the Pacific Ocean tend to keep the beach communities of the Los Angeles area cooler in summer and warmer in winter than those further inland; summer temperatures can sometimes be as much as 18 °F (10 °C) warmer in the inland communities compared to that of the coastal communities. Coastal areas also see a phenomenon known as the "marine layer," a dense cloud cover caused by the proximity of the ocean that helps keep the temperatures cooler throughout the year. When the marine layer becomes more common and pervades farther inland during the months of May and June, it is called June Gloom.[26]

Echo Park, as seen with Lotus Plants and Palm Trees.
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Echo Park, as seen with Lotus Plants and Palm Trees.

Temperatures in the summer can get well over 90 °F (32 °C), but average summer daytime highs in downtown are 82 °F (27 °C), with overnight lows of 63 °F (17 °C). Winter daytime high temperatures will get up to around 65 °F (18 °C), on average, with overnight lows of 48 °F (10 °C) and during this season rain is common. The warmest month is August, followed by July and then September. This somewhat large case of seasonal lag is caused by Los Angeles' proximity to the ocean and its latitude of 34° north.

The median temperature in January is 57 °F (13 °C) and 73 °F (22 °C) in August. The highest temperature recorded within city borders was 119.0 °F (48.33 °C) in Woodland Hills on July 22, 2006;[27] the lowest temperature recorded was 18.0 °F (−7.8 °C) in 1989, in Canoga Park. The highest temperature recorded for Downtown Los Angeles was 112.0 °F (44.4 °C) on June 26 1990, and the lowest temperature recorded was 24.0 °F (−5.0 °C) on January 9 1937.

Rain occurs mainly in the winter and spring months (February being the wettest month) with great annual variations in storm severity. Los Angeles averages 15 inches (38 cm) of precipitation per year. Snow is extraordinarily rare in the city basin, but the mountainous slopes within city limits typically receive snow every year. The greatest snowfall recorded in downtown Los Angeles was 2.0 inches (5 cm) on January 15, 1932.[28]

Weather averages for Los Angeles, California (downtown)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 90 (32) 92 (33) 93 (33) 96 (35) 99 (37) 104 (40) 103 (39) 102 (39) 110 (43) 104 (40) 96 (35) 92 (33) ()
Average high °F (°C) 65 (18) 66 (18) 68 (20) 70 (21) 73 (22) 76 (24) 84 (29) 82 (27) 81 (27) 77 (25) 73 (22) 68 (20) ()
Average low °F (°C) 48 (8) 49 (9) 50 (10) 53 (11) 56 (13) 58 (14) 63 (16) 63 (17) 61 (16) 58 (14) 53 (11) 50 (10) ()
Record low °F (°C) 28 (-2) 34 (1) 38 (3) 41 (5) 43 (6) 50 (10) 54 (12) 51 (10) 50 (10) 46 (8) 40 (4) 24 (-4) ()
Precipitation inch (cm) 2.7 (6) 3.1 (7) 2.2 (5) 1.3 (3.3) 0.3 (0.8) 0.1 (0.2) 0 (0) 0 (0) 0.2 (0.5) 0.4 (1) 1.1 (2) 2.5 (6) ()
Source: weatherbase.com[29] Jun 2007

Flora

The Los Angeles area is rich in native plant species due in part to a diversity in habitats, including beaches, wetlands, and mountains. The most prevalent botanical environment is coastal sage scrub, which covers the hillsides in combustible chaparral. Native plants include: California poppy, matilija poppy, toyon, coast live oak, and giant wild rye grass. Many of these native species, such as the Los Angeles sunflower, have become so rare as to be considered endangered. Though it is not native to the area, the official flower of Los Angeles is Strelitzia reginae.[30]

Environmental issues

Hills of Griffith Park with smog and downtown L.A. in the background. Griffith Observatory is seen to the left, Downtown Los Angeles in the center.
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Hills of Griffith Park with smog and downtown L.A. in the background. Griffith Observatory is seen to the left, Downtown Los Angeles in the center.

Due to geography, heavy reliance on automobiles, and the Los Angeles/Long Beach port complex, Los Angeles suffers from air pollution in the form of smog. The Los Angeles Basin and the San Fernando Valley are susceptible to atmospheric inversion, which holds in the fumes from road vehicles, airplanes, locomotives, shipping, manufacturing, and other sources.[31] Unlike other large cities that rely on rain to clear smog, Los Angeles only gets 15 inches (381 mm) of rain each year, allowing pollution to accumulate over multiple consecutive days. This has brought much attention from the state of California to mandate low emissions vehicles.[32] As a result, pollution levels have dropped in recent decades. The number of Stage 1 smog alerts has declined from over 100 per year in the 1970s to almost zero in the new millennium. Despite improvement, the 2006 annual report of the American Lung Association ranks the city as the most polluted in the country with short-term particle pollution and year-round particle pollution.[33][34] In addition, the groundwater is increasingly threatened by MTBE from gas stations and perchlorate from rocket fuel. With pollution still a significant problem, the city continues to take steps to improve air and water conditions.[35][36]

Cityscape

The city is divided into many neighborhoods, many of which were towns that were annexed by the growing city. There are also several independent cities in and around Los Angeles, but they are popularly grouped with the city of Los Angeles, either due to being completely engulfed as enclaves by Los Angeles, or lying within its immediate vicinity. Generally, the city is divided into the following areas: Downtown Los Angeles, East Los Angeles, South Los Angeles, the Harbor Area, Hollywood, Wilshire, the Westside, and the San Fernando and Crescenta Valleys.

Some well-known communities of Los Angeles include Watts, Venice Beach, the Downtown Financial District, Los Feliz, Silver Lake, Hollywood, Hancock Park, Koreatown, Westwood and the more affluent areas of Bel-Air, Benedict Canyon, Hollywood Hills,