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Medici, Lorenzo de', 1492–1519, duke of Urbino

(Encyclopedia)Medici, Lorenzo de', 1492–1519, duke of Urbino (1516–19); son of Piero de' Medici. His uncle, Pope Leo X, made the youthful Lorenzo duke of Urbino. After his early death, however, Urbino reverted ...

Alexander I, czar of Russia

(Encyclopedia)Alexander I, 1777–1825, czar of Russia (1801–25), son of Paul I (in whose murder he may have taken an indirect part). In the first years of his reign the liberalism of his Swiss tutor, Frédéric ...

My Lai incident

(Encyclopedia)My Lai incident mē lī [key], a massacre of Vietnamese civilians by U.S. soldiers in the Vietnam War. On Mar. 16, 1968, a unit of the U.S. army's Americal division, led by Lt. William L. Calley, inva...

Americas, antiquity and prehistory of the

(Encyclopedia)Americas, antiquity and prehistory of the, study of the origins of the aboriginal peoples of the Americas. Archaeologists believe humans had entered and occupied much of the Americas by the end of the...

nullity of marriage

(Encyclopedia)nullity of marriage, in law, an unlawful marriage that is either void or voidable because of conditions existing at the time of the marriage. A bigamous or incestuous marriage, for example, is void, a...

Keokuk, city, United States

(Encyclopedia)Keokuk, city (1990 pop. 12,451), seat of Lee co., extreme SE Iowa, on the Mississippi River at the foot of the Des Moines River rapids and in a farm area; inc. 1847. Its industries focus on food proce...

Court of Justice of the European Union

(Encyclopedia)Court of Justice of the European Union, judicial institution of the European Union (EU). Located in Luxembourg, it was founded in 1958 as the joint court for the three treaty organizations that were c...

National Council of the Churches of Christ in the United States of America

(Encyclopedia)National Council of the Churches of Christ in the United States of America, cooperative agency of 35 Protestant, Orthodox, and Anglican denominations. Formed in 1950, with headquarters in New York Cit...

New York, University of the State of

(Encyclopedia)New York, University of the State of, chartered 1784. It consists of all secondary and higher educational institutions incorporated in the state and other institutions, organizations, and agencies for...

Arc de Triomphe de l'Étoile

(Encyclopedia)Arc de Triomphe de l'Étoile ärk də trēôNfˈ də lātwälˈ [key], imposing triumphal arch in Paris standing on an elevation at the end of the Avenue des Champs Élysées and in the center of the ...