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Mao Zedong

(Encyclopedia)Mao Zedong or Mao Tse-tung mou dzŭ-do͝ong [key], 1893–1976, founder of the People's Republic of China. Mao was one of the most prominent Communist theoreticians and his ideas on revolutionary stru...

Luther, Martin

(Encyclopedia)Luther, Martin, 1483–1546, German leader of the Protestant Reformation, b. Eisleben, Saxony, of a family of small, but free, landholders. At Wittenberg the iconoclasts under Carlstadt had institut...

Root, Elihu

(Encyclopedia)Root, Elihu, 1845–1937, American cabinet member and diplomat, b. Clinton, N.Y. Admitted to the bar in 1867, he practiced law in New York City, became prominent in Republican politics, and was appoin...

dune

(Encyclopedia)dune, mound or ridge of wind-blown sand formed in arid regions and along coasts. Dunes are common in most of the great deserts of the world. Often a dune begins to form because material is deposited b...

biotechnology

(Encyclopedia)biotechnology, the use of biological processes, as through the exploitation and manipulation of living organisms or biological systems, in the development or manufacture of a product or in the technol...

Roland

(Encyclopedia)Roland rōˈlənd [key], the great French hero of the medieval Charlemagne cycle of chansons de geste, immortalized in the Chanson de Roland (11th or 12th cent.). Existence of an early Roland poem is ...

sunburn

(Encyclopedia)sunburn, inflammation of the skin caused by actinic rays from the sun or artificial sources. Moderate exposure to ultraviolet radiation is followed by a red blush, but severe exposure may result in bl...

Northern War

(Encyclopedia)Northern War, 1700–1721, general European conflict, fought in N and E Europe at the same time that the War of the Spanish Succession was fought in the west and the south. It arose chiefly from the d...

William of Occam

(Encyclopedia)William of Occam or Ockham both: ŏkˈəm [key], c.1285–c.1349, English scholastic philosopher. A Franciscan, Occam studied and taught at Oxford from c.1310 until 1324, when he was summoned to the p...

Moravian Church

(Encyclopedia)Moravian Church, Renewed Church of the Brethren, or Unitas Fratrum yo͞onēˈtäs fräˈtro͝om [key], an evangelical Christian communion whose adherents are sometimes called United Brethren or Herrn...