History of California Timeline

USC was established in Los Angeles, becoming Southern California's oldest private research university and a major institution in the growth of the region.

Image source: University of Southern California

Leland and Jane Stanford founded Stanford University in memory of their son. It later became central to the development of Silicon Valley and California's technology industry.

Image source: Stanford University

A devastating earthquake struck San Francisco, followed by fires that destroyed most of the city. Around 3,000 people died, and the disaster prompted massive rebuilding efforts.

Image source: 1906 San Francisco earthquake

William Mulholland's aqueduct began delivering water from the Owens Valley to Los Angeles, enabling the city's explosive growth but devastating Owens Valley communities and ecosystems.

Image source: Los Angeles Aqueduct

By the mid-1910s, Hollywood had become the heart of American filmmaking, with studios drawn by sunshine, varied scenery, and cheap land, launching California's entertainment empire.

Image source: Cinema of the United States

San Francisco hosted a world's fair celebrating the Panama Canal's completion and showcasing the city's recovery from the 1906 earthquake, boosting its international prestige.

Image source: Panama–Pacific International Exposition

The iconic Golden Gate Bridge opened to traffic, connecting San Francisco to Marin County and becoming one of the most recognizable landmarks in the world.

Image source: Golden Gate Bridge

Executive Order 9066 forced more than 100,000 Japanese Americans, many from California, into internment camps, one of the gravest civil liberties violations in American history.

Image source: Internment of Japanese Americans

While the transistor itself was invented on the East Coast, its inventors and successors soon moved to Northern California, seeding the semiconductor industry that grew into Silicon Valley.

Image source: Collapse of Silicon Valley Bank

Walt Disney opened Disneyland, the first modern theme park, in Anaheim. It became a global cultural phenomenon and cemented Southern California as an entertainment capital.

Image source: Disneyland

Students at UC Berkeley protested restrictions on political activity on campus, igniting the student activist movement of the 1960s and influencing campus politics nationwide.

Image source: Free Speech Movement

As many as 100,000 young people converged on San Francisco's Haight-Ashbury neighborhood, making the city the epicenter of the counterculture movement of the 1960s.

Image source: Summer of Love

Steve Jobs, Steve Wozniak, and Ronald Wayne founded Apple Computer in a Los Altos garage, launching the personal computer revolution and symbolizing Silicon Valley entrepreneurship.

Image source: Apple Inc.

California voters passed Proposition 13, capping property taxes and reshaping state and local government finance; it became a landmark of the national tax revolt movement.

Image source: 1978 California Proposition 13

Los Angeles hosted the Summer Olympics for a second time. Financially successful and widely watched, the games revitalized the city's international image.

Image source: 1984 Summer Olympics

A magnitude 6.7 earthquake struck the San Fernando Valley, killing dozens and causing billions of dollars in damage, prompting improvements in seismic safety codes.

Image source: 1994 Northridge earthquake

Internet startups flourished in Silicon Valley, driving enormous economic growth in the Bay Area before the bubble burst in 2000, reshaping the tech industry.

Image source: Dot-com bubble

In Hollingsworth v. Perry, the U.S. Supreme Court cleared the way for same-sex marriage to resume in California, a milestone in LGBTQ+ rights that preceded nationwide marriage equality in 2015.

Image source: Hollingsworth v. Perry