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
Reform Party of the United States of America their platform. The idea was to form a large coalition of moderates; that intention was overridden in 2001 by the Buchanan takeover which rewrote the RPUSA Constitution to include platform planks opposed to any form of abortion. The Buchananists, in turn, were overridden by the 2002 Convention which reverted the Constitution to its 1996 version and the party's original stated goals. The party's active state affiliates are: Reform Party of the United States of America The Reform Party of the United States of America (RPUSA), generally known as the Reform Party USA or the Reform Party, is a political party