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 Nations Association of the United States of America Chair of the Board of Directors of AAUN in 1961. In 1964, AAUN merged with the US Committee for the United Nations, a group composed of 138 national organizations supporting the work of the United Nations, thereby creating the United Nations Association of the United States of America. Since then, several distinguished Americans have served in positions of leadership at UNA-USA. These include: Charles W. Yost one of the founders of the United Nations and US permanent representative to the United Nations; and Arthur J. Goldberg, former Justice of the US Supreme Court and US permanent representative to the United