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History of San Francisco Timeline
(1776 - Present)San Francisco's history spans from the founding of the Yerba Buena settlement in 1776 by Spanish colonists to its explosive growth during the California Gold Rush of 1848-1849. The city became a major port and financial center on the West Coast, was devastated by the 1906 earthquake and fire but rebuilt rapidly, and later became the epicenter of social movements including the Beat Generation, hippie counterculture of the 1960s, and LGBTQ rights activism. In recent decades, San Francisco has transformed into a leading center of technology and innovation, home to Silicon Valley's influence and major tech companies. More Less
Early Settlement
Spanish explorers sight the San Francisco Bay
Nov 4, 1769
An overland expedition led by Gaspar de Portolá became the first documented European party to see the San Francisco Bay, mistaking it for an inland lake at first. The discovery opened the region to Spanish colonization.
Image source: Portolá expedition
Presidio of San Francisco established by Spain
Sep 17, 1776
The Spanish built a fortified military post at the Golden Gate to protect the bay and support the nearby mission. The Presidio remained a military installation for over two centuries under Spanish, Mexican, and American control.
Image source: Presidio of San Francisco
Mission San Francisco de Asís founded
Oct 9, 1776
Spanish Franciscans established Mission Dolores, the oldest surviving building in San Francisco. The mission converted local Ohlone people to Christianity and agriculture, becoming the anchor of the small colonial settlement of Yerba Buena.
Image source: Mission San Francisco de Asís
Yerba Buena village founded
1835
Englishman William Richardson established a small trading settlement on the shore of the bay near today's Portsmouth Square. Yerba Buena grew slowly as a port for hide and tallow trade with ships from around the world.
Image source: Yerba Buena, California
United States captures Yerba Buena during Mexican-American War
Jul 7, 1846
American naval forces raised the U.S. flag in Yerba Buena's plaza, claiming the town for the United States during the Mexican-American War. Mexico formally ceded California in the Treaty of Guadalupe Hidalgo in 1848.
Image source: Battle of Monterey
Town renamed San Francisco
Apr 3, 1847
Alcalde Washington Bartlett officially changed the settlement's name from Yerba Buena to San Francisco, aligning it with the name of the nearby bay and signaling ambitions for growth.
Image source: History of San Francisco
Gold Rush and Boomtown
San Francisco population explodes during Gold Rush
1848 - 1850
San Francisco's population swelled from roughly 1,000 to more than 25,000 in two years. Ships were abandoned in the harbor as crews deserted for the goldfields, and some vessels were converted into stores, hotels, and jails.
Image source: California gold rush
California Gold Rush begins
Jan 24, 1848 - 1855
James W. Marshall discovered gold at Sutter's Mill, triggering one of the largest human migrations in history. Tens of thousands of fortune seekers, known as forty-niners, poured into San Francisco, transforming it almost overnight.
Image source: California Gold Rush
San Francisco incorporated as a city
Apr 15, 1850
San Francisco was formally incorporated as a city, and later that year became the seat of the newly created San Francisco County. It quickly developed banks, newspapers, theaters, and a notorious red-light district known as the Barbary Coast.
Vigilance Committee formed to combat crime
1851 - 1856
Frustrated by crime and corruption in the booming city, citizens organized extralegal vigilance committees that hanged suspected criminals and drove out officials they deemed corrupt, highlighting the rough justice of the frontier city.
Image source: San Francisco Committee of Vigilance
Key Facts
- San Francisco was founded in 1776 when Spanish colonists established the Presidio and Mission San Francisco de Asís (Mission Dolores) in the area then known as Yerba Buena.
- The discovery of gold in California in 1848 triggered the Gold Rush, causing San Francisco's population to explode from about 1,000 to over 25,000 within two years.
- The devastating 1906 earthquake and subsequent fires destroyed roughly 80% of San Francisco and killed an estimated 3,000 people, making it one of the worst natural disasters in U.S. history.
- In the 1960s, San Francisco's Haight-Ashbury district became the center of the hippie counterculture movement, symbolized by the 1967 'Summer of Love.'
- Since the 1990s, San Francisco has emerged as a global hub for technology and innovation, with nearby Silicon Valley driving the city's economy through the dot-com boom and beyond.
Source
This History of San Francisco timeline was generated with the help of AI, using information found on the internet.
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