Discover The Los Angeles coastal area was first settled by the Tongva (or Gabrieleños) and Chumash Native American tribes thousands of years ago. Juan Rodríguez Cabrillo, a Portuguese-born explorer, claimed the area of southern California for the Spanish Empire in Gaspar de Portolà and Franciscan missionary Juan Crespí, reached the present site of Los Angeles on August 2, 1769.
Base In 1771, Franciscan friar Junípero Serra directed the building of the Mission San Gabriel Arcangel, the first mission in the area. On September 4, 1781, a group of forty-four settlers known as "Los Pobladores" founded the pueblo called "La Reyna de los Angeles", named for Nuestra Señora la Reina de los Ángeles del Río de Porciúncula (Our Lady the Queen of the Angels of the Porciúncula River)(Nicknames: L.A., the City of Angels, Angeltown, La-La Land). Two-thirds of the settlers were mestizo or mulatto with African, Amerindian, and European ancestry. The settlement remained a small ranch town for decades, but by 1820 the population had increased to about 650 residents. Today, the pueblo is commemorated in the historic district of Los Angeles Pueblo Plaza and Olvera Street, the oldest part of Los Angeles.
American L.A New Spain achieved its independence from the Spanish Empire in 1821, and the pueblo continued as a part of Mexico. During Mexican rule, Governor Pío Pico, made Los Angeles Alta California's regional capital. 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, Railroads arrived with the completion of the Southern Pacific line to Los Angeles in Oil was discovered 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.
20th century 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, assured the continued growth of the city. In 1910, not only had the city of Los Angeles annexed Hollywood, but there were already at least 10 movie companies operating in the city. By 1921, more than 80 percent of the world's film industry was concentrated in L.A. The money generated by the industry kept the city insulated from much of the economic pain suffered by the rest of the country during the Great Depression. By 1930, the population surpassed one million. In 1932, the city hosted the Summer Olympics. The Los Angeles Coliseum hosted the Olympic Games in 1932 and After the second world war, the city grew more rapidly than ever, sprawling into the San Fernando Valley. In 1969, Los Angeles became one of the birthplaces of the Internet, as the first ARPANET transmission was sent from the University of California, Los Angeles (UCLA) to SRI in Menlo Park. In 1984, the city hosted the Summer Olympic Games for the second time. Despite being boycotted by 14 Communist countries, the 1984 Olympics became more financially successful than any previous, and the second Olympics to turn a profit until then – the other, according to an analysis of contemporary newspaper reports, being the 1932 Summer Olympics, also held in Los Angeles. Racial tensions erupted on April 29, 1992, with the acquittal by a Simi Valley jury of the police officers captured on videotape beating Rodney King, culminating in large-scale riots. In 1994, the 6.7 Northridge earthquake shook the city, causing $12.5 billion in damage and 72 deaths. The century ended with the Rampart scandal, one of the most extensive documented cases of police misconduct in American history.