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Weaver, James Baird

(Encyclopedia)Weaver, James Baird, 1833–1912, American political leader, b. Dayton, Ohio. Reared in frontier areas of Michigan and Iowa, he practiced law in Iowa. He served in the Union army in the Civil War and ...

United Nations

(Encyclopedia)CE5 CE5 United Nations (UN), international organization established immediately after World War II. It replaced the League of Nations. In 1945, when the UN was founded, there were 51 members; 193...

free will

(Encyclopedia)free will, in philosophy, the doctrine that an individual, regardless of forces external to him, can and does choose at least some of his actions. The existence of free will is challenged by determini...

erosion

(Encyclopedia)erosion ĭrōˈzhən [key], general term for the processes by which the surface of the earth is constantly being worn away. The principal agents are gravity, running water, near-shore waves, ice (most...

Sherman Antitrust Act

(Encyclopedia)Sherman Antitrust Act, 1890, first measure passed by the U.S. Congress to prohibit trusts; it was named for Senator John Sherman. Prior to its enactment, various states had passed similar laws, but th...

oratorio

(Encyclopedia)oratorio ôrətôrˈēō [key], musical composition employing chorus, orchestra, and soloists and usually, but not necessarily, a setting of a sacred libretto without stage action or scenery. The imme...

blood pressure

(Encyclopedia)blood pressure, force exerted by the blood upon the walls of the arteries. The pressure in the arteries originates in the pumping action of the heart, and pressure waves can be felt at the wrist and a...

administrative law

(Encyclopedia)administrative law, law governing the powers and processes of administrative agencies. The term is sometimes used also of law (i.e., rules, regulations) developed by agencies in the course of their op...

Mendès-France, Pierre

(Encyclopedia)Mendès-France, Pierre pyĕr măNdĕsˈ-fräNs [key], 1907–82, French statesman. A lawyer and economist, he entered (1932) the chamber of deputies as a Radical Socialist. In World War II he was a pi...

Mitchell, Joan

(Encyclopedia)Mitchell, Joan, 1926–92, American abstract painter, b. Chicago, studied Smith College, Art Institute of Chicago (B.F.A., 1947; M.F.A., 1950). A vibrant colorist, she was one of the finest painters o...