A sailing ship called Brooklyn, arrives in present-day San Francisco. The ship carried 246 mormon settlers and arrived in a small Mexican village called Yerba Buena.
Sam Brannan opens a general store near Sutter's Fort
A Mormon leader named Sam Brannan opened a store near present-day Sacramento, hoping to create some profit in a new state.
Gold discovered at Sutter's Mill
Approx. January 24th, 1848
James Marshall discovered a 1/3 ounce of gold at Sutter's Mill near present-day Sacramento. He was still in the middle of building the mill for John Sutter when he found it. James Marshall told John Sutter about the discovery. When John found out he made his employees swear to secrecy.
Treaty of Guadalupe Hidalgo
Approx. February 2nd, 1848
The Treaty of Guadalupe Hidalgo was signed, which ended the Mexican-American War. In the process, Mexico gave up parts of California, New Mexico, Texas, Colorado, Utah, and Nevada. As the U.S. acquired California, more people could move there.
Newspaper reports gold
Approx. March 15th, 1848
On March 15th, 1848 the San Francisco newspapers reported the gold finding at Sutter's Mill. Not much was done, however, because nobody in San Francisco believed that there was gold. This would change when...
Sam Brannan announces the discovery of gold to the people of San Francisco
Approx. May 12th, 1848
Sam Brannan ran through the streets of San Francisco holding a vial of gold. Everybody in San Francisco then knew about the gold. Basically the entire male population of San Francisco left to find gold.
President James Polk confirms the Gold Rush
Approx. December 5th, 1848
In an address to Congress, President James Polk confirmed the discovery of gold in California. He told about the hundreds of thousands of men migrating to California.
Hydraulic Mining is Invented
Edward Matteson invents hydraulic mining because he was frustrated by the decreasing amount of gold in California. He invented it by using to a hose to spray a hillside which revealed the gold underneath.