(also spelled Pakal)Mayan King Born: 603 Pacal was ruler of the Mayan kingdom of Palenque from age 12 until his death at age 80. The name Pacal means shield in the Mayan language. Pacal…
Born: 1919Birthplace: Philadelphia, Pa. ENIAC data translating device—Engineers Eckert and Mauchly invented ENIAC (Electronic Numerical Integrator and Calculator), the first multipurpose computer,…
Born: 1907Birthplace: Cincinnati, Ohio ENIAC data translating device—Engineers Eckert and Mauchly invented ENIAC (Electronic Numerical Integrator and Calculator), the first multipurpose computer,…
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On the Rails 1769 The steam engine is invented in Scotland. 1804 The steam-powered…
diplomatDied: Nov. 23, 2007 (Moscow, Russia) Best Known as: former Russian diplomat and chief of the K.G.B. Former Russian diplomat and chief of the K.G.B. He was…
computer programmerDied: March 5, 2008 (Groben, Germany) Best Known as: computer programmer who created "Eliza" Joseph Weizenbaum was a computer programmer who…
(Encyclopedia) Elephant Butte Dam, main unit of the Rio Grande project of the U.S. Bureau of Reclamation on the Rio Grande, SW N.Mex.; completed 1916. The dam, with its large reservoir, is used for…
(Encyclopedia) Cox, George Barnsdale, 1853–1916, American politician, Republican boss of Cincinnati, b. Cincinnati. A former bootblack, he turned to real estate and local politics after selling his…
(Encyclopedia) CtesibiusCtesibiustĭsĭbˈēəs [key], fl. 2d cent. b.c., Alexandrian Greek inventor. He reputedly was the first to discover and apply the expansive power of air as a motive force. Among…
(Encyclopedia) Iowa, river, 329 mi (529 km) long, rising in the lakes of N Iowa and flowing SE to the Mississippi River, SE Iowa; Cedar River (300 mi/483 km long) is its chief tributary. A power dam…
