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
United Presbyterian Church in the United States of America that was upheld by the 1981 General Assembly. Ordained in the United Church of Christ, Kaseman declined to affirm straightforwardly the deity of Christ, His sinless nature and the bodily resurrection. This case resulted in a further wave of departures from the UPCUSA, including those who founded the Evangelical Presbyterian Church, along with longtime Pittsburgh Seminary professor John Gerstner. As the UPCUSA continued its more liberal shift, talks had begun regarding a merger between the UPCUSA and the Presbyterian Church in the United States, who had split from the main Presbyterian Church in the United States of America in 1861