Early History

The earliest evidence of human habitation in what is now the city of San Francisco dates to 3000 BC. Native Americans who settled in this region found the bay to be a resource for hunting and gathering, leading to the establishment of many small villages. Collectively, these early Native Americans are now known as the Ohlone, and the language they spoke belonged to the Miwok family. Their trade patterns included places as far away as Baja California, the Mojave Desert and Yosemite.[2]

The earliest Europeans to reach the site of San Francisco were a Spanish exploratory party in 1769, led overland from Mexico by Don Gaspar de Portolá and Fra. Joan Crespí. The Spanish recognized the location, with its large natural harbor, to be of great strategic significance. A subsequent expedition, led by Juan Bautista de Anza, selected sites for military and religious settlements in 1774. The Presidio of San Francisco was established for the military, while Mission San Francisco de Asís began the cultural and religious conversion of some 10,000 Ohlone who lived in the area.[3] The mission became known as Mission Dolores, because of its nearness to a creek named after Our Lady of Sorrows.

The first anchorage was established at a small inlet on the north-east end of the peninsula (later filled: now lower Market Street), and the small settlement that grew up nearby was named Yerba Buena, after the herb of the same name that grew in abundance there. The original plaza of the Spanish settlement remains as Portsmouth Square. Today's city took its name from the mission, and Yerba Buena became the name of a San Francisco neighborhood now known as South of Market. The Moscone Center and Yerba Buena Gardens are in the Yerba Buena area. In addition, the name Yerba Buena was applied to the former Goat Island in the middle of San Francisco Bay, adjacent to Treasure Island.[citation needed]

San Francisco became part of the United States with the signing of the Treaty of Guadalupe Hidalgo in 1848.\

Gold Rush 1848

The California gold rush starting in 1848 led to a large boom in population, including considerable immigration. Between January 1848 and December 1849, the population of San Francisco increased from 1,000 to 25,000. The rapid growth continued through the 1850s and under the influence of the 1859 Comstock Lode silver discovery. This rapid growth complicated city planning efforts, leaving a legacy of narrow streets that continues to characterize the city to this day.

The population boom included many workers from China who came to work in the gold mines and later on the Transcontinental Railroad. The Chinatown district of the city became and is still one of the largest in the country; today, as a result of that legacy, the city as a whole is roughly one-fifth Chinese, one of the largest concentrations outside of China. Many businesses founded to service the growing population exist today, notably Levi Strauss & Co. clothing, Ghirardelli chocolate, and Wells Fargo bank. Many famous railroad, banking, and mining tycoons or "robber barons" such as Charles Crocker, Mark Hopkins, Collis P. Huntington, and Leland Stanford settled in the city in its Nob Hill neighborhood. The sites of their mansions are now famous and expensive San Francisco hotels (Mark Hopkins Hotel and the Huntington Hotel).[citation needed]

As in many mining towns, the social climate in early San Francisco was chaotic. Committees of Vigilance were formed in 1851, and again in 1856, in response to crime and government corruption. This popular militia movement lynched 12 people, kidnapped hundreds of Irishmen and government militia members, and forced several elected officials to resign.[citation needed] The Committee of Vigilance relinquished power both times after it decided the city had been "cleaned up." This mob activity later focused on Chinese immigrants, creating many race riots.[18] These riots culminated in the creation of the Chinese Exclusion Act in 1882 that aimed to reduce Chinese immigration to the United States by limiting immigration to males and reducing numbers of immigrants allowed in the city.[19][20] The law was not repealed until 1943 with the Magnuson Act.

Panama Canal

In 1915, the city hosted the Panama–Pacific International Exposition, officially to celebrate the opening of the Panama Canal, but also as a showcase of the vibrant completely rebuilt city less than a decade after the earthquake. After the exposition ended, all of its grand buildings were demolished except for the rebuilt Palace of Fine Arts which survives today in an abbreviated form, while the remainder of the fairgrounds were re-developed into the Marina District.

Summer of Love

Following World War II, San Francisco became a magnet for America's counterculture. During the 1950s, City Lights Bookstore in the North Beach neighborhood was an important publisher of Beat Generation literature. Some of the story of the evolving arts scene of the 1950s is told in the article San Francisco Renaissance. During the latter half of the following decade, the 1960s, San Francisco was the center of hippie and other alternative culture.[citation needed]

In 1967, thousands of young people entered the Haight-Ashbury district during what became known as the Summer of Love. The San Francisco Sound emerged as an influential force in rock music, with such acts as Jefferson Airplane and the Grateful Dead achieving international prominence. These groups blurred the boundaries between folk, rock and jazz traditions and further developed rock's lyrical content.