What important events happend in California the mid

* 1848: Gold is discovered at Sutter's Mill, starting the California Gold Rush.

* 1850: California is admitted to the Union as the 31st state.

* 1869: The First Transcontinental Railroad is completed, linking California to the rest of the United States.

* 1906: The San Francisco Earthquake and Fire destroys much of the city.

* 1913: The Panama Canal opens, making it easier for ships to travel between the Atlantic and Pacific Oceans and boosting California's economy.

* 1937: The Golden Gate Bridge opens, connecting San Francisco to Marin County.

* 1941: The Japanese attack Pearl Harbor, leading to the United States' entry into World War II. California becomes a major center of military production during the war.

* 1960s: The Civil Rights Movement and the counterculture movement have a major impact on California.

* 1970s: The state's population booms as people move to California from other parts of the United States and the world.

* 1980s: The state's economy is hit hard by the recession, but it recovers in the 1990s.

* 2000s: California is hit by a series of natural disasters, including the 1994 Northridge earthquake, the 2003 San Diego wildfires, and the 2018 Camp Fire.

* 2010s: California becomes a leader in the fight against climate change. The state also legalizes same-sex marriage and recreational marijuana use.