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Yusuf ibn Tashfin

(Encyclopedia)Yusuf ibn Tashfin yo͞oso͝ofˈ ĭˈbən täshfēnˈ [key], d. 1106, ruler in the dynasty of the Almoravids (c.1059–1106). A Muslim, he led the Berbers in N Africa, continued the conquest of Morocco...

Combes, Émile

(Encyclopedia)Combes, Émile āmēlˈ kôNb [key], 1835–1921, French statesman. An able politician of the left democratic group, he was minister of education under Léon Bourgeois (1895–96) and, succeeding Ren�...

Faure, Félix

(Encyclopedia)Faure, Félix fōr [key], 1841–99, president of the French republic (1895–99). A leather merchant, he served in the Franco-Prussian War and became an undersecretary for commerce and colonies in t...

Harmony Society

(Encyclopedia)Harmony Society, religious society founded by German Separatists under the leadership of George Rapp. The Harmonists (or Rappites) held property in common and subscribed to the austere doctrines of th...

Madrid, autonomous community and province, Spain

(Encyclopedia)Madrid mədrĭdˈ, Span. mäᵺhrēᵺˈ [key], autonomous community and coextensive prov., (2011 pop. 6,421,874), 3,099 sq mi (8,027 sq km), central Spain. Madrid, the capital of Spain, is also its c...

Schrieffer, John Robert

(Encyclopedia)Schrieffer, John Robert, 1931–2019, American physicist, b., Oak Park, Ill., Ph.D. Univ. of Illinois, 1957. Schrieffer was a professor at the Univ. of Chicago (1957–60), the Univ. of Illinois (1960...

zirconium

(Encyclopedia)zirconium zərkōˈnēəm [key], metallic chemical element; symbol Zr; at. no. 40; at. wt. 91.224; m.p. about 1,852℃; b.p. 4,377℃; sp. gr. 6.5 at 20℃; valence +2, +3, or +4. Zirconium is a very ...

Granada, city, Nicaragua

(Encyclopedia)Granada gränäˈᵺä [key], city, W Nicaragua, on Lake Nicaragua. It is Nicaragua's third l...

Office of Price Administration

(Encyclopedia)Office of Price Administration (OPA), U.S. federal agency in World War II, established to prevent wartime inflation. The OPA issued (Apr., 1942) a general maximum-price regulation that made prices cha...

Segovia, city, Spain

(Encyclopedia)Segovia, city (1990 pop. 55,188), capital of Segovia prov., central Spain, in Castile and León, on the Eresma River. It stands on a rocky hill (3,297 ft/1,005 m high) crowned by the cathedral and the...