(Encyclopedia) Puerto Rico pw?rt? r?k?, island (2015 est. pop. 3,674,000), 3,508 sq mi (9,086 sq km), West Indies, c.1,000 mi (1,610 km) SE of Miami, Fla. Officially known as the Commonwealth of? Infoplease has everything you need to know about Puerto Rico. Check out our countryprofile, full of essential information about Puerto Rico'sgeography, history,government, economy, population,? (Encyclopedia) Puerto Rico, University of, main campus at Ro Piedras, near San Juan; land-grant and commonwealth; coeducational; founded 1903 as successor to a normal school. The Ro Piedras campus? Puerto Rico Profile: History o Government o Economy o Population Puerto Rico Information Encyclopedia: Puerto Rico In-depth entries covering: Economy,? Celebrating the abolition of slavery by Liz Olson On March 22, Puerto Rico celebrates the annual holiday, Emancipation Day, commemorating the abolition of slavery from its island in? U.S. News | Disasters & Science News Here's a slideshow depicting the major world news events of September 2016. 1. Death of Uzbekistan's? (Encyclopedia) Porto Rico: see Puerto Rico. U.S. News | Disasters & Science News Here's a slideshow depicting the major science and disaster news events of April 2016. 1? AreaTotalPercent vacantOccupiedPercent owner-occuppiedUnited States115,904,6419.0%105,480,10166.2%Region Northeast22,180,4408.520,285,62262.4Midwest29,963,6358.324,734,53270.2South42,382,? (Encyclopedia) Mona, island, Puerto Rico: see under Mona Passage.