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Cleaver, Eldridge

(Encyclopedia)Cleaver, Eldridge (Leroy Eldridge Cleaver), 1935–98, African-American social activist, b. Wabbaseka, Ark. Growing up in Los Angeles, he spent much of 1954–66 in prison for various crimes including...

Sayan Mountains

(Encyclopedia)Sayan Mountains säyänˈ [key], central Asia, chiefly in S Siberia. The Eastern Sayan Mts. extend c.680 mi (1,090 km) from the lower Yenisei River to the southwest end of Lake Baykal and rise to 11,6...

Schumann-Heink, Ernestine

(Encyclopedia)Schumann-Heink, Ernestine sho͞oˈmən-hīngk [key], 1861–1936, Austrian-American contralto, b. near Prague. Her voice was distinguished for its richness and wide range. She studied with Marietta Le...

Przhevalsky, Nikolai Mikhailovich

(Encyclopedia)Przhevalsky, Nikolai Mikhailovich nyĭkəlīˈ mēkhīˈləvĭch pərzhĭvälˈskē [key], 1839–88, Russian geographer and explorer in central and E Asia. He made five major expeditions—one to the...

azurite

(Encyclopedia)azurite ăzhˈərīt [key], blue mineral, the basic carbonate of copper, occurring in monoclinic crystals or masses that range from transparent to translucent and opaque. It is usually associated with...

Bergonzi, Carlo

(Encyclopedia)Bergonzi, Carlo, 1924–2014, Italian opera singer. He began his career as a baritone, debuting in 1948, but he made a second debut as a tenor in 1951 after realizing his voice was better suited to th...

Cantabrian Mountains

(Encyclopedia)Cantabrian Mountains kăntāˈbrēən [key], N Spain, extending c.300 mi (480 km) along the Bay of Biscay from the Pyrenees to Cape Finisterre. Torre de Cerredo (8,687 ft/2,648 m) in the Picos de Euro...

white alder

(Encyclopedia)white alder, deciduous shrub or small tree (Clethra alnifolia) native to the Appalachians, named for the resemblance of its leaves to those of the unrelated true alders. It is cultivated as an ornamen...

hogback

(Encyclopedia)hogback, sharp-crested ridge with steep slopes on both sides, formed by the erosion of steeply tilted rock layers. Hogbacks are commonly formed along the eroded flanks of large, tightly folded anticli...

Anderson, Clinton Presba

(Encyclopedia)Anderson, Clinton Presba, 1895–1975, U.S. government official and senator, b. Centerville, S.Dak. He had a newspaper and insurance background before he served New Mexico as treasurer (1933–34) and...