(Encyclopedia) malaria, infectious parasitic disease that can be either acute or chronic and is frequently recurrent. Malaria is common in Africa, Central and South America, the Mediterranean…
(Encyclopedia) ThraceThracethrās [key], region, 3,310 sq mi (8,575 sq km), SE Europe, occupying the southeastern tip of the Balkan Peninsula and comprising NE Greece, S Bulgaria, and European Turkey…
(Encyclopedia) chromospherechromospherekrōˈməsfērˌ [key] [Gr.,=color sphere], layer of rarefied, transparent gases in the solar atmosphere; it measures 6,000 mi (9,700 km) in thickness and lies…
(Encyclopedia) Velázquez, Diego Rodríguez de Silva yVelázquez, Diego Rodríguez de Silva yrôᵺrēˈgāth ᵺā sēlˈvä ē vāläthˈkāth [key], 1599–1660, b. Seville. He was the most celebrated painter of the…
(Encyclopedia) Progressive party, in U.S. history, the name of three political organizations, active, respectively, in the presidential elections of 1912, 1924, and 1948.
At Philadelphia in…
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For African-American authors and illustrators whose books promote the contributions to the American dream; given by the American Library Association. A separate award…
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