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Udall, Stewart Lee

(Encyclopedia)Udall, Stewart Lee yo͞oˈdôl [key], 1920–2010, U.S. cabinet member and environmentalist, b. St. Johns, Ariz. After serving in World War II, Udall practiced law in Tucson until elected to the U.S. ...

Arizona

(Encyclopedia)CE5 Arizona ârˌəzōˈnə [key], state in the SW United States. It is bordered by Utah (N), New Mexico (E), Mexico (S), and, largely across the Colorado River, Nevada and California (W); it touch...

National Radio Astronomy Observatory

(Encyclopedia)National Radio Astronomy Observatory (NRAO), federal observatory for radio astronomy, founded in 1956 and operated under contract with the National Science Foundation by Associated Universities, Inc.,...

Indian wars

(Encyclopedia)Indian wars, in American history, general term referring to the series of conflicts between Europeans and their descendants and the indigenous peoples of North America. After 1860 the wars continued...

United States

(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...

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