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Armory Show

(Encyclopedia)Armory Show, international exhibition of modern art held in 1913 at the 69th-regiment armory in New York City. It was a sensational introduction of modern art into the United States. The estimated 1,6...

Cantabrian Mountains

(Encyclopedia)Cantabrian Mountains kăntāˈbrēən [key], N Spain, extending c.300 mi (480 km) along the Bay of Biscay from the Pyrenees to Cape Finisterre. Torre de Cerredo (8,687 ft/2,648 m) in the Picos de Euro...

Swann v. Charlotte-Mecklenburg County Board of Education

(Encyclopedia)Swann v. Charlotte-Mecklenburg County Board of Education, case decided in 1971 by the U.S. Supreme Court. The Court held that the constitutional mandate (see Brown v. Board of Education of Topeka, Kan...

pyroxene

(Encyclopedia)pyroxene pīˈrŏksēn [key], name given to members of a group of widely distributed rock minerals called metasilicates in which magnesium, iron, and calcium, often with aluminum, sodium, lithium, man...

quartzite

(Encyclopedia)quartzite, usually metamorphic rock composed of firmly cemented quartz grains. Most often it is white, light gray, yellowish, or light brown, but is sometimes colored blue, green, purple, or black by ...

Shannon, Wilson

(Encyclopedia)Shannon, Wilson, 1802–77. American political leader, Mount Olivet, Ohio. A lawyer, he entered politics and was governor of Ohio (1838–40, 1842–44), minister to Mexico (1844–45), and a member o...

Simmons, Ruth

(Encyclopedia)Simmons, Ruth, 1945–, American educator and college president, b. Grapeland, Tex., grad. Dillard Univ. (B.A., 1967) and Harvard (A.M., 1970; Ph.D., 1973). As a scholar she was primarily concerned wi...

Cullen, Countee

(Encyclopedia)Cullen, Countee kounˈtēˈ [key], 1903–46, American poet, b. New York City, grad. New York Univ. 1925, M.A. Harvard, 1926. A major writer of the Harlem Renaissance—a flowering of black artistic a...

chromite

(Encyclopedia)chromite krōˈmīt [key], dark brown to black mineral. It is an iron-chromium oxide, FeCr2O4, with traces of magnesium and aluminum. Its crystals are octahedral, but rare; it usually occurs as irregu...

Chesapeake Bay retriever

(Encyclopedia)Chesapeake Bay retriever, breed of large sporting dog developed in the United States. It stands about 24 in. (61 cm) high at the shoulder and weighs about 65 lb (29.5 kg). Its thick, short double coat...