1848 in California
California gold rush
The California gold rush (1848–1855) was a gold rush in California, which began on January 24, 1848, when gold was found by James W. Marshall at Sutter's Mill in Coloma, California. The news of gold brought approximately 300,000 people from the rest of the United States and abroad to California, which had recently been conquered from Mexico.
Treaty of Guadalupe Hidalgo
The Treaty of Guadalupe Hidalgo officially ended the Mexican–American War (1846–1848). It was signed on the 2nd of February 1848 in the town of Guadalupe Hidalgo. After the defeat of its army and the fall of the capital in September 1847, Mexico entered into peace negotiations with the U.S. envoy, Nicholas Trist.