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Central Intelligence Agency

(Encyclopedia)Central Intelligence Agency (CIA), independent executive bureau of the U.S. government established by the National Security Act of 1947, replacing the wartime Office of Strategic Services (1942–45),...

nitrogen

(Encyclopedia)nitrogen nīˈtrəjən [key], gaseous chemical element; symbol N; at. no. 7; interval in which at. wt. ranges 14.00643–14.00728; m.p. −209.86℃; b.p. −195.8℃; density 1.25 grams per liter at ...

Cleveland, Grover

(Encyclopedia)Cleveland, Grover (Stephen Grover Cleveland), 1837–1908, 22d (1885–89) and 24th (1893–97) President of the United States, b. Caldwell, N.J.; son of a Presbyterian clergyman. Cleveland's independ...

Sioux

(Encyclopedia)Sioux or Dakota, confederation of Native North American tribes, the dominant group of the Hokan-Siouan linguistic stock, which is divided into several separate branches (see Native American languages)...

Calhoun, John Caldwell

(Encyclopedia)Calhoun, John Caldwell kălˌho͞onˈ [key], 1782–1850, American statesman and political philosopher, b. near Abbeville, S.C., grad. Yale, 1804. He was an intellectual giant of political life in his...

mechanics

(Encyclopedia)mechanics, branch of physics concerned with motion and the forces that tend to cause it; it includes study of the mechanical properties of matter, such as density, elasticity, and viscosity. Mechanics...

Marshall, John

(Encyclopedia)Marshall, John, 1755–1835, American jurist, 4th chief justice of the United States (1801–35), b. Virginia. Marshall in his arguments drew much from his colleagues, especially his devoted adhe...

apartheid

(Encyclopedia)apartheid əpärtˈhīt [key] [Afrik.,=apartness], system of racial segregation peculiar to the Republic of South Africa, the legal basis of which was largely repealed in 1991–92. Despite public de...

Charleston, cities, United States

(Encyclopedia)Charleston. 1 City (2020 pop. 17,286), seat of Coles co., E Ill.; inc. 1835. Charleston is an industrial, rail, and trade center located in an ...

Whig party

(Encyclopedia)Whig party, one of the two major political parties of the United States in the second quarter of the 19th cent. By the time Fillmore had succeeded to the presidency, the disintegration of the party ...
 

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