Los Angeles
Los Angeles lies in a basin in Southern California, adjacent to the Pacific Ocean, with mountains as high as 10,000 feet, and deserts. The city, which covers about 469 square miles
History
Mexican rule ended during the Mexican–American War: Americans took control from the Californios after a series of battles, culminating with the signing of the Treaty of Cahuenga on January 13, 1847.
Railroads arrived with the completion of the transcontinental Southern Pacific line from New Orleans to Los Angeles in 1876 and the Santa Fe Railroad in 1885.Petroleum was discovered in the city and surrounding area in 1892, and by 1923, the discoveries had helped California become the country’s largest oil producer, accounting for about one-quarter of the world’s petroleum output.
By 1900, the population had grown to more than 102,000, putting pressure on the city’s water supply. The completion of the Los Angeles Aqueduct in 1913, under the supervision of William Mulholland, ensured the continued growth of the city. Because of clauses in the city’s charter that prevented the City of Los Angeles from selling or providing water from the aqueduct to any area outside its borders, many adjacent cities and communities felt compelled to annex themselves into Los Angeles.
Los Angeles created the first municipal zoning ordinance in the United States. On September 14, 1908, the Los Angeles City Council promulgated residential and industrial land use zones. The new ordinance established three residential zones of a single type, where industrial uses were prohibited. The proscriptions included barns, lumber yards, and any industrial land use employing machine-powered equipment. These laws were enforced against industrial properties after-the-fact. These prohibitions were in addition to existing activities that were already regulated as nuisances. These included explosives warehousing, gas works, oil-drilling, slaughterhouses, and tanneries. Los Angeles City Council also designated seven industrial zones within the city. However, between 1908 and 1915, Los Angeles City Council created various exceptions to the broad proscriptions that applied to these three residential zones, and as a consequence, some industrial uses emerged within them. There are two differences from the 1908 Residence District Ordinance and later zoning laws in the United States. First, the 1908 laws did not establish a comprehensive zoning map as the 1916 New York City Zoning Ordinance did. Second, the residential zones did not distinguish types of housing; it treated apartments, hotels, and detached-single-family housing equally.
Economy
The economy of Los Angeles is driven by international trade, entertainment (television, motion pictures, video games, music recording, and production), aerospace, technology, petroleum, fashion, apparel, and tourism. Other significant industries include finance, telecommunications, law, healthcare, and transportation. In the 2017 Global Financial Centres Index, Los Angeles was ranked as having the 19th most competitive financial center in the world, and sixth most competitive in United States (after New York City, San Francisco, Chicago, Boston, and Washington, D.C.).
One of the five major film studios, Paramount Pictures, is within the city limits, its location being part of the so-called “Thirty-Mile Zone” of entertainment headquarters in Southern California.
Los Angeles is the largest manufacturing center in the United States. The contiguous ports of Los Angeles and Long Beach together comprise the busiest port in the United States by some measures and the fifth-busiest port in the world, vital to trade within the Pacific Rim.
Geography
The city of Los Angeles covers a total area of 502.7 square miles, comprising 468.7 square miles of land and 34.0 square miles of water. The city extends for 44 miles north-south and for 29 miles east-west. The perimeter of the city is 342 miles.
Los Angeles is both flat and hilly. The highest point in the city proper is Mount Lukens at 5,074 ft, located at the northeastern end of the San Fernando Valley. The eastern end of the Santa Monica Mountains stretches from Downtown to the Pacific Ocean and separates the Los Angeles Basin from the San Fernando Valley. Other hilly parts of Los Angeles include the Mt. Washington area north of Downtown, eastern parts such as Boyle Heights, the Crenshaw district around the Baldwin Hills, and the San Pedro district.