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International System of Units

(Encyclopedia)International System of Units, officially called the Système International d'Unités, or SI, system of units adopted by the 11th General Conference on Weights and Measures (1960). It is based on the ...

fraternity and sorority

(Encyclopedia)fraternity and sorority, in American colleges, a student society formed for social purposes, into which members are initiated by invitation and occasionally by a period of trial known as hazing. Frate...

Erdös, Paul

(Encyclopedia)Erdös, Paul ĕrˈdös [key], 1913–96, Hungarian mathematician, b. Budapest. A child prodigy, he was mostly home-schooled by his parents—both teachers of mathematics—until he entered the Univ. o...

May Fourth Movement

(Encyclopedia)May Fourth Movement (1919), first mass movement in modern Chinese history. On May 4, about 5,000 university students in Beijing protested the Versailles Conference (Apr. 28, 1919) awarding Japan the f...

Morgenthau, Henry, Jr.

(Encyclopedia)Morgenthau, Henry, Jr., 1891–1967, American cabinet officer, b. New York City; son of Henry Morgenthau. He became interested in agriculture and bought a farm in Dutchess co., N.Y., where he became a...

Melanchthon, Philip

(Encyclopedia)Melanchthon, Philip məlăngkˈthən [key], 1497–1560, German scholar and humanist. He was second only to Martin Luther as a figure in the Lutheran Reformation. His original name was Schwarzerd [Ger...

McGillivray, Alexander

(Encyclopedia)McGillivray, Alexander məgĭlˈĭvrā [key], 1759–93, Native American chief. He was born in the Creek country now within the borders of the state of Alabama, the son of Lachlan McGillivray, a Scots...

William I, king of the Netherlands

(Encyclopedia)William I, 1772–1843, first king of the Netherlands and grand duke of Luxembourg (1815–40), son of Prince William V of Orange, last stadtholder of the Netherlands. He commanded (1793–95) the Dut...

Third World

(Encyclopedia)Third World, the technologically less advanced, or developing, nations of Asia, Africa, and Latin America, generally characterized as poor, having economies distorted by their dependence on the export...

Blair, Francis Preston, 1791–1876, American journalist and politician

(Encyclopedia)Blair, Francis Preston, 1791–1876, American journalist and politician, b. Abingdon, Va. Through the Frankfort, Ky., journal Argus of Western America, which he edited with Amos Kendall, Blair was an ...