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
History of the Jews in the United States office and voting, but Delaware, Pennsylvania, South Carolina, and Georgia soon eliminated these barriers, as did the Bill of Rights in 1791 generally. Sephardic Jews became active in community affairs in the 1790s, after achieving "political equality in the five states in which they were most numerous." Other barriers did not officially fall for decades in the states of Rhode Island (1842), North Carolina (1868), and New Hampshire (1877). Despite these restrictions, which were often enforced unevenly, there were really too few Jews in 17th- and 18th-century America for anti-Jewish incidents to become a significant social or political phenomenon at