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Richards, Ellen Henrietta Swallow

(Encyclopedia) Richards, Ellen Henrietta Swallow, 1842–1911, American chemist, educator, and organizer of the home economics movement, b. Dunstable, Mass., grad. Vassar, 1870. In 1870 she began the…

Cruveilhier, Jean

(Encyclopedia) Cruveilhier, JeanCruveilhier, JeanzhäN krüvĕyāˈ [key], 1791–1874, French physician. The first professor of pathology at the Univ. of Paris (from 1836), he introduced the descriptive…

Harvard, John

(Encyclopedia) Harvard, John, 1607–38, English minister in America and first major benefactor of Harvard College, b. Southwark, England, M.A. Emmanuel College, Cambridge, 1635. He immigrated in 1637…

Waterhouse, Benjamin

(Encyclopedia) Waterhouse, Benjamin, 1754–1846, American physician, b. Newport, R.I. He studied at the universities of Edinburgh and Leiden. In 1783 he became professor on the first faculty of the…

Dance Theatre of Harlem

(Encyclopedia) Dance Theatre of Harlem, the first black classical ballet company. The group was founded in Harlem, New York City, by Arthur Mitchell, then of the New York City Ballet, the first…

Draper, John William

(Encyclopedia) Draper, John William, 1811–82, American scientist, philosopher, and historian, b. near Liverpool, England, M.D. Univ. of Pennsylvania, 1836. In 1839 he became professor of chemistry at…

Concord, river, United States

(Encyclopedia) Concord, river, c.15 mi (24 km) long, NE Mass., a short tributary of the Merrimack, which it joins at Lowell. On Apr. 19, 1775, colonial militia fired some of the first shots of the…

Gibson, Randall Lee

(Encyclopedia) Gibson, Randall Lee, 1832–92, Confederate general and U.S. legislator, b. Woodford co., Ky. Gibson served in most of the Western campaigns of the Civil War, first as an artillery…

Grimaldi, Francesco Maria

(Encyclopedia) Grimaldi, Francesco MariaGrimaldi, Francesco Mariafränchāsˈkō märēˈä grēmälˈdē [key], 1618?–1663, Italian physicist and mathematician. A Jesuit and professor at Bologna, he studied in…

April Fool's Day

(Encyclopedia) April Fool's Day or All Fool's Day, holiday of uncertain origin, known for practical joking and celebrated on the first of April. Prior to the adoption of the Gregorian calendar in…