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Orrery, Roger Boyle, 1st earl of

(Encyclopedia)Orrery, Roger Boyle, 1st earl of, 1621–79, Irish statesman and writer; son of Richard Boyle, 1st earl of Cork. Created (1627) Baron Broghill, he studied at Trinity College, Dublin, traveled abroad, ...

Puntland

(Encyclopedia)Puntland, semiautonomous region (2009 est. pop. 3,900,000), c.82,050 sq mi (212,500 sq km), extreme NE Somalia. It is bordered on the N by the Gulf of Aden, on the E by the Indian Ocean, on the S by t...

Vicksburg

(Encyclopedia)Vicksburg, city (1990 pop. 20,908), seat of Warren co., W Miss., on bluffs above the Mississippi River at the mouth of the Yazoo; inc. 1825. An important port, it is the commercial, processing, and sh...

Grand Coulee Dam

(Encyclopedia)Grand Coulee Dam ko͞oˈlē [key], 550 ft (168 m) high and 4,173 ft (1,272 m) long, on the Columbia ...

geodesy

(Encyclopedia)geodesy jēŏdˈĭsē [key] or geodetic surveying, theory and practice of determining the position of points on the earth's surface and the dimensions of areas so large that the curvature of the earth...

Ordovician period

(Encyclopedia)Ordovician period ôrdəvĭshˈən [key] [from the Ordovices, ancient tribe of N Wales], second period of the Paleozoic era of geologic time (see Geologic Timescale, tablegeologic timescale, table) fr...

evaporation

(Encyclopedia)evaporation, change of a liquid into vapor at any temperature below its boiling point. For example, water, when placed in a shallow open container exposed to air, gradually disappears, evaporating at ...

Foreign Ministers, Council of

(Encyclopedia)Foreign Ministers, Council of, organization of the foreign ministers of the World War II Allies—the United States, Great Britain, France, and the USSR—that, in a long series of meetings, attempted...

Maya, indigenous people of Mexico and Central America

(Encyclopedia)Maya mīˈə, Span. mäˈyä [key], indigenous people of S Mexico and Central America, occupying an area comprising the Yucatán peninsula and much of the present state of Chiapas in Mexico, Guatemala...

Ottawa, indigenous people of North America

(Encyclopedia)Ottawa ōdäˈwə [key], Native Americans whose language belongs to the Algonquian branch of the Algonquian-Wakashan linguistic stock (see Native American languages). Traditionally of the Eastern Wood...