History of immigration to the United States 1850. In 1848, the Treaty of Guadalupe Hidalgo, concluding the Mexican War, extended U.S. citizenship to approximately 60,000 Mexican residents of the New Mexico Territory and 10,000 living in California. An additional approximate 2,500 foreign born California residents also become U.S. citizens. In 1849, the California Gold Rush attracted 100,000 would-be miners from the Eastern U.S., Latin America, China, Australia, and Europe. California became a state in 1850 with a population of about 90,000. Between 1850 and 1930, about 5 million Germans migrated to the United States, peaking between 1881 and 1885 when a million Germans settled primarily in the
1940 United States presidential election in California 1940 United States presidential election in California In the 1940 United States presidential election, California voted for the Democratic incumbent, Franklin Roosevelt, over the Republican challenger, businessman Wendell Willkie. Willkie did nonetheless make considerable gains vis-à-vis the previous Republican nominee, Alf Landon, who remains the solitary Republican nominee to not carry a single county in the state. Willkie carried seven counties scattered across the state and gained twenty percentage points on Landon’s performance. This remains the last election when the Democrats have won Sutter County, which , stands as the longest run voting for one party by any California county.