Columbia Encyclopedia

(Encyclopedia)  National Parks and Monuments 1 National Parks and Monuments National Monuments National and International Historic Sites and Historical Parks National Memorials National Battlef...

(Encyclopedia) Union of Soviet Socialist Republics (USSR), Rus. Soyuz Sovetskikh Sotsialisticheskikh Respublik, former republic. It was established in 1922 and dissolved in 1991. The Soviet Union was the first state...

(Encyclopedia)  CE5 Pakistan păkˈĭstănˌ, päkĭstänˈ [key], officially Islamic Republic of Pakistan, republic (2015 est. pop. 189,381,000), 310,403 sq mi (803,944 sq km), S Asia. Pakistan is bordered by Ind...

(Encyclopedia)  CE5 CE5 CE5 United States, officially United States of America, republic (2015 est. pop. 319,929,000), 3,539,227 sq mi (9,166,598 sq km), North America. The United States is the world's third l...