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
National Youth Orchestra of the United States of America National Youth Orchestra of the United States of America The National Youth Orchestra of the United States of America (NYO-USA) is an American youth orchestra organized by Carnegie Hall’s Weill Music Institute. It was established in 2012, and its first concert tour took place in the summer of 2013. Each summer, following an application and audition process, about 120 musicians ages 16 to 19 attend a two-week residency at Purchase College, New York, followed by a national or international tour. In January 2012 Carnegie Hall announced the launch of the National Youth Orchestra of the United States of America (NYO-USA).