<Li> ^ "The Star - Spangled Banner" serves as the national anthem for the United States of America and its territories . </Li> <Li> ^ The term' Commonwealth' does not describe or provide for any specific political status or relationship . It has, for example, been applied to both states and territories . When used in connection with areas under U.S. sovereignty that are not states, the term broadly describes an area that has a constitution of its adoption . </Li> <P> Puerto Rico (Spanish for "Rich Port"), officially the Commonwealth of Puerto Rico (Spanish: Estado Libre Asociado de Puerto Rico, lit . "Free Associated State of Puerto Rico") and briefly called Porto Rico, is an unincorporated territory of the United States located in the northeast Caribbean Sea, approximately 1,000 miles (1,600 km) southeast of Miami, Florida . </P> <P> An archipelago among the Greater Antilles, Puerto Rico includes the main island of Puerto Rico and a number of smaller ones, such as Mona, Culebra, and Vieques . The capital and most populous city is San Juan . Its official languages are Spanish and English, though Spanish predominates . The island's population is approximately 3.4 million . Puerto Rico's history, tropical climate, natural scenery, traditional cuisine, and tax incentives make it a destination for travelers from around the world . </P>

When did puerto rico become a state of the united states
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