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Guggenheim

(Encyclopedia)Guggenheim go͝ogˈənhīm [key], family of American industrialists and philanthropists. Meyer Guggenheim, 1828–1905, b. Aargau canton, Switzerland, emigrated (1847) to the United States, prospered ...

Four-H

(Encyclopedia)Four-H or 4-H, organization for boys and girls, generally from 8 to 18 years of age; some states offer programs for younger children, and there are also collegiate programs. 4-H teaches young people l...

Sanger, Margaret Higgins

(Encyclopedia)Sanger, Margaret Higgins, 1879–1966, American leader in the birth control movement, b. Corning, N.Y. Personal experience and work as a public-health nurse, much of it on New York City's Lower East S...

Balkan Wars

(Encyclopedia)Balkan Wars, 1912–13, two short wars, fought for the possession of the European territories of the Ottoman Empire. The outbreak of the Italo-Turkish War for the possession of Tripoli (1911) encourag...

radio frequency

(Encyclopedia)radio frequency, range of electromagnetic waves with a frequency or wavelength suitable for communication uses. Some of these waves serve as carriers of the lower-frequency audio waves; others are mod...

Organization for Security and Cooperation in Europe

(Encyclopedia)Organization for Security and Cooperation in Europe (OSCE), international organization established as the Conference on Security and Cooperation in Europe (CSCE) in 1973, during the cold war, to promo...

Briand, Aristide

(Encyclopedia)Briand, Aristide ärēstēdˈ brēäNˈ [key], 1862–1932, French statesman. A lawyer and a Socialist, he entered (1902) the chamber of deputies and helped to draft and pass the law (1905) for separa...

Welles, Sumner

(Encyclopedia)Welles, Sumner, 1892–1961, American diplomat, b. New York City. Welles began his diplomatic career as secretary of the U.S. embassy at Tokyo (1915–17). Attached to the embassy at Buenos Aires (191...

Koolhaas, Rem

(Encyclopedia)Koolhaas, Rem (Remmet Lucas Koolhaas), 1944–, Dutch architect, b. Rotterdam. He began his career as a journalist and screenwriter, moving to London in the late 1960s to study architecture. Koolhaas ...