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Clark, Alvan

(Encyclopedia)Clark, Alvan, 1804–87, American astronomer and maker of astronomical lenses, b. Ashfield, Mass. In 1846 the firm of Alvan Clark & Sons was established at Cambridgeport, Mass.; it became famous a...

Cumberland, Richard, 1631–1718, English philosopher

(Encyclopedia)Cumberland, Richard, 1631–1718, English philosopher. He was bishop of Peterborough from 1691. In his De legibus naturae [on natural laws] (1672) he first propounded the doctrine of utilitarianism an...

Kansas, state, United States

(Encyclopedia) CE5 Kansas kănˈzəs [key], midwestern state occupying the center of the coterminous United States. It is bordered by Missouri (E), Oklahoma (S), Colorado (W), and Nebraska (N). Kansas has b...

District of Columbia

(Encyclopedia)District of Columbia, federal district (2020 pop. 689,545), 69 sq mi (179 sq km), on the east bank of the Potomac River, coextensive with the city of Wa...

Mexican War

(Encyclopedia)Mexican War, 1846–48, armed conflict between the United States and Mexico. The United States had won an easy victory, partly because Mexico, torn by civil strife, could not present a united fron...

Fort Riley

(Encyclopedia)Fort Riley, U.S. military post, 5,760 acres (2,331 hectares), NE Kans., on the Kansas River; est. 1852 to protect travelers on the Santa Fe Trail from attack by Native Americans. Located near the geog...

Sterling Heights

(Encyclopedia)Sterling Heights, city (1990 pop. 117,810), Macomb co., SE Mich., on the Clinton River; platted 1835 as Jefferson Township, renamed 1838, inc. 1968. Largely rural until the mid-20th cent., the city gr...

Niagara Falls, waterfall, United States and Canada

(Encyclopedia)Niagara Falls, in the Niagara River, W N.Y. and S Ont., Canada; one of the most famous spectacles in North America. The falls are on the international line between the cities of Niagara Falls, N.Y., a...

Cumberland Valley

(Encyclopedia)Cumberland Valley, 75 mi (121 km) long and from 15 to 20 mi (24–32 km) wide, part of the great Appalachian valley, between the Potomac and Susquehanna rivers, W Md. and S Pa. It is a fertile farming...
 

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