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productivity

(Encyclopedia)productivity, in economics, the output of any aspect of production per unit of input. It is a measure of the output of a worker, machine, or an entire national economy in the creation of goods and ser...

Rockefeller, John Davison

(Encyclopedia)Rockefeller, John Davison, 1839–1937, American industrialist and philanthropist, b. Richford, N.Y. He moved (1853) with his family to a farm near Cleveland and at age 16 went to work as a bookkeeper...

Myers, Gustavus

(Encyclopedia)Myers, Gustavus, 1872–1942, American historian, b. Trenton, N.J. He worked on a number of newspapers and magazines in New York City, joined the Populist party and the Social Reform Club, and was a m...

Leutze, Emanuel

(Encyclopedia)Leutze, Emanuel loitˈsə [key], 1816–68, American historical painter, b. Germany. In 1859 he settled in the United States, working in Washington, D.C., and New York City. His pictures are chiefly E...

Hecht, Selig

(Encyclopedia)Hecht, Selig, 1892–1947, American biophysicist, b. Glogow, Austria (now Poland). He moved to the United States in 1898 and was graduated from the College of the City of New York (B.S., 1913) and fro...

Hartman, David

(Encyclopedia)Hartman, David, 1931–2013, Israeli rabbi and philosopher, b. Brooklyn, N.Y. The son of Hasidim who immigrated to the United States from Israel, he trained as a rabbi at Yeshiva Univ., New York City,...

Ball, Thomas

(Encyclopedia)Ball, Thomas, 1819–1911, American sculptor, b. Charlestown, Mass.; son of a house and sign painter. Thomas Ball was also a singer of reputation, the first in the United States to sing the title role...

Flagstad, Kirsten

(Encyclopedia)Flagstad, Kirsten kĭrˈstən flăgˈstăd, Nor. khĭshˈtən flägˈstä [key], 1895–1962, Norwegian soprano. She made her debut in 1913 but sang only in Scandinavia until 1934, when she appeared a...

Wilson, James Grant

(Encyclopedia)Wilson, James Grant, 1832–1914, American biographer and man of letters, b. Scotland. He was brought to the United States in 1833. After journalistic work in Chicago and service in the Union army in ...

Zunser, Eliakum

(Encyclopedia)Zunser, Eliakum ĕlˈyōko͝om tso͝onˈzər [key], 1846–1913, Lithuanian folk poet and singer who wrote in Yiddish. The most popular Jewish folk singer of his time, he appeared at weddings all over...
 

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