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catastrophism

(Encyclopedia)catastrophism kətăsˈtrəfĭzəm [key], in geology, the doctrine that at intervals in the earth's history all living things have been destroyed by cataclysms (e.g., floods or earthquakes) and replac...

Barzun, Jacques

(Encyclopedia)Barzun, Jacques zhäk bärˈzən [key], 1907–2012, American writer, educator, and historian, b. Créteil, France, grad. Columbia (B.A., 1927; Ph.D., 1932). Barzun moved to the United States in 1919....

Burgess, John William

(Encyclopedia)Burgess, John William, 1844–1931, American educator and political scientist, b. Tennessee. He served in the Union army in the Civil War and after the war graduated from Amherst (1867). He was admitt...

heroin

(Encyclopedia)heroin hĕˈrəwən [key], opiate drug synthesized from morphine (see narcotic). Originally produced in 1874, it was thought to be not only nonaddictive but useful as a cure for respiratory illness an...

North Atlantic Treaty Organization

(Encyclopedia)North Atlantic Treaty Organization (NATO), established under the North Atlantic Treaty (Apr. 4, 1949) by Belgium, Canada, Denmark, France, Great Britain, Iceland, Italy, Luxembourg, the Netherlands, N...

Dukes, Leopold

(Encyclopedia)Dukes, Leopold, 1810–91, Hungarian Hebrew scholar. He made a collection of rabbinical proverbs and wrote on the history of Jewish literature, notably of Hebrew poetry in the Middle Ages. He also tra...

Keegan, Sir John Desmond Patrick

(Encyclopedia)Keegan, Sir John Desmond Patrick, 1934–2012, British military historian, b. London. The foremost British military historian of his era, he attended Oxford and after graduation went to the United Sta...

Aubrey, John

(Encyclopedia)Aubrey, John ôˈbrē [key], 1626–97, English antiquary and miscellaneous writer, b. Kingston, Wiltshire, educated at Trinity College, Oxford. He knew most of the famous people of his day and left c...

Giedion, Sigfried

(Encyclopedia)Giedion, Sigfried zēkhˈfrēd gēˈdēôn [key], 1883–1968, Swiss historian of architecture. Giedion was a student of Heinrich Wölfflin and close associate of Walter Gropius. He was a key figure o...

conscience

(Encyclopedia)conscience, sense of moral awareness or of right and wrong. The concept has been variously explained by moralists and philosophers. In the history of ethics, the conscience has been looked upon as the...