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Cher, department, France

(Encyclopedia)Cher shĕr [key], department, central France, in Berry. Chief cities are Vierzon and Bour...

Organization of American States

(Encyclopedia)Organization of American States (OAS), international organization, created Apr. 30, 1948, at Bogotá, Colombia, by agreement of Argentina, Bolivia, Brazil, Chile, Colombia, Costa Rica, the Dominican R...

Doubs, department, France

(Encyclopedia)Doubs do͞o [key], department, E France, in Franche-Comté, bordering on the Jura Mts. and on...

Marne, department, France

(Encyclopedia)Marne märn [key], department (1990 pop. 559,600), NE France, in Champagne. Châlons-en-Champagne is the capital. ...

Ain, department, France

(Encyclopedia)Ain ăN [key], department, E central France, in Burgundy, bordering on Switzerland. Bourg-en-Bresse is the capital. ...

Iowa, state, United States

(Encyclopedia)CE5 Iowa īˈəwə [key], midwestern state in the N central United States. It is bounded by the Mississippi River, across which lie Wisconsin and Illinois (E); Missouri (S); Nebraska and South Dako...

Natchez, city, United States

(Encyclopedia)Natchez, city (1990 pop. 19,460), seat of Adams co., SW Miss., on bluffs above the Mississippi River; settled 1716, inc. 1803. It is the trade, shipping, and processing center for a soybean, corn, cot...

Arkansas, river, United States

(Encyclopedia)Arkansas ärkănˈzəs, ärˈkənsôˌ [key], river, c.1,450 mi (2,330 km) long, rising in the Rocky Mts., central Colo., and flowing generally SE across the plains to the Mississippi River, SE Ark.; ...

Ohio, river, United States

(Encyclopedia)Ohio, river, 981 mi (1,579 km) long, formed by the confluence of the Allegheny and Monongahela rivers in SW Pa., at Pittsburgh; it flows northwest, then generally southwest to enter the Mississippi Ri...

United States Naval Observatory

(Encyclopedia)United States Naval Observatory, a federal astronomical observatory, located in Washington, D. C. It evolved from the Navy's oldest scientific institution, the Depot of Charts and Instruments, founded...