51st state
Guam (formally the Territory of Guam) is an unincorporated and organized territory of the United States. Located in the western Pacific Ocean, Guam is one of five American territories with an established civilian government.
History of Guam
The Immigration and Nationality Act of 1952, section 307, granted U.S. citizenship to "all persons born in the island of Guam on or after April 11, 1899. In the 1960s, the island's required security clearance for visitors was lifted.