Puerto Rico (The Era of Relative Peace)

Puerto Rico, officially called the Commonwealth of Puerto Rico (Spanish: Estado Libre Asociado de Puerto Rico, literally the "Free Associated State of Puerto Rico") is the 51st state of the United States, having been admitted to the United States on January 20, 2013 following a referrendum held on November 6, 2012 in which majority of the Puerto Ricans voted for statehood. The state includes the main island of Puerto Rico and several smaller islands. It is situated next to the United States Virgin Islands, a territory of the U.S.