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Peterson, Roger Tory

(Encyclopedia)Peterson, Roger Tory, 1908–96, American ornithologist, writer, and illustrator, b. Jamestown, N.Y. He became famous with his best-selling pocket-sized Field Guide to the Birds (1934) and is known fo...

Schwarz, Berthold

(Encyclopedia)Schwarz, Berthold bĕrˈtôlt shvärts [key], fl. 14th cent., German Franciscan monk and alchemist. It was formerly widely believed, especially in Germany, that he invented gunpowder and was the first...

Dodd, Samuel Calvin Tate

(Encyclopedia)Dodd, Samuel Calvin Tate, 1836–1907, American lawyer, b. Franklin, Pa. He was admitted to the Pennsylvania bar in 1859. Dodd was employed by the Rockefeller interests and is credited with devising t...

fair-trade laws

(Encyclopedia)fair-trade laws, in the United States, a former group of statutes that permitted manufacturers to specify the minimum retail price of a commodity. The first fair-trade law was adopted (1931) by Califo...

Diamond, David

(Encyclopedia)Diamond, David, 1915–2005, American composer, b. Rochester, N.Y. Diamond was trained at the Cleveland Institute of Music and the Eastman School; he also studied with Roger Sessions in New York and N...

Sperry, Roger Wolcott

(Encyclopedia)Sperry, Roger Wolcott, 1913–94, American biologist, b. Hartford, Conn., Ph.D. Univ. of Chicago, 1941. He studied zoology before teaching biology at the Univ. of Chicago (1946–52) and the Californi...

Manuel I, Byzantine emperor

(Encyclopedia)Manuel I (Manuel Comnenus) kŏmnēˈnəs [key], c.1120–1180, Byzantine emperor (1143–80), son and successor of John II. He began his reign with a war against the Seljuk Turks, the subjugation of R...

Constitutional Convention

(Encyclopedia)Constitutional Convention, in U.S. history, the 1787 meeting in which the Constitution of the United States was drawn up. The convention at Philadelphia drew up one of the most influential document...
 

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