—Holly HartmanMystery Skull In July 2002, an international team led by French paleontologist Michel Brunet announced the discovery of a humanlike skull that may be up to seven million years old,…
(Encyclopedia) Panama Canal, waterway across the Isthmus of Panama, connecting the Atlantic (by way of the Caribbean Sea) and Pacific oceans, built by the United States (1904–14, on territory leased…
(Encyclopedia) dam, barrier, commonly across a watercourse, to hold back water, often forming a reservoir or lake; dams are also sometimes used to control or contain rockslides, mudflows, and the…
(Encyclopedia) Macau or MacaoMacaoməkouˈ [key], Port. Macau, Mandarin Aomen, special administrative region of China, formerly administered by Portugal (2015 est. pop. 601,000), 10.8 sq mi (28.2 sq km…
(Encyclopedia)
CE5
Louisiana Purchase (1803)
Louisiana Purchase, 1803, American acquisition from France of the formerly Spanish region of Louisiana.
Jefferson instructed Livingston to attempt…
(Encyclopedia)
CE5
North America, third largest continent (2015 est. pop. 571,949,000), c.9,400,000 sq mi (24,346,000 sq km), the northern of the two continents of the Western Hemisphere. North…
(350 or more miles long)Alabama-Coosa (600 mi.; 966 km): From junction of Oostanula and Etowah R. in Georgia to Mobile R.Altamaha-Ocmulgee (392 mi.; 631 km): From junction of Yellow R. and South R…
