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Mamun, al-

(Encyclopedia)Mamun, al- (Abu al-Abbas Abd Allah al-Mamun) mämo͞onˈ [key], 786–833, 7th Abbasid caliph (813–33); son of Harun ar-Rashid. He succeeded his brother al-Amin after a bitter civil war, but was una...

Massachusetts Institute of Technology

(Encyclopedia)Massachusetts Institute of Technology, at Cambridge; coeducational; chartered 1861, opened 1865 in Boston, moved 1916. It has long been recognized as an outstanding technological institute and its Slo...

Mathews, Shailer

(Encyclopedia)Mathews, Shailer, 1863–1941, American theologian, educator, and author, b. Portland, Maine, studied at Colby College, at Newton Theological Institution, and at the Univ. of Berlin. After seven years...

Mattis, James

(Encyclopedia)Mattis, James, 1950–, American general and secretary of defense (2017–18), b. Pullman, Wash., grad. Central Washington Univ. (1971). Commissioned as a second lieutenant (1972) in the Marines after...

Maundy Thursday

(Encyclopedia)Maundy Thursday mônˈdē [key] [Lat. mandatum, word in the ceremony], traditional English name for Thursday of Holy Week, so named because it is considered the anniversary of the institution of the E...

Rumford, Benjamin Thompson, Count

(Encyclopedia)Rumford, Benjamin Thompson, Count, 1753–1814, American-British scientist and administrator, b. Woburn, Mass. In 1776 he went to England, where he served (1780–81) as undersecretary of the colonies...

Sanhedrin

(Encyclopedia)Sanhedrin sănhĕdˈrĭn [key], ancient Jewish legal and religious institution in Jerusalem that appears to have exercised the functions of a court between c.63 b.c. and c.a.d. 68. The accounts of it ...

Cushing, Frank Hamilton

(Encyclopedia)Cushing, Frank Hamilton, 1857–1900, American ethnologist, b. North East, Pa. He published his first scientific paper at the age of 17, and at 18 joined the American ethnology bureau at the Smithsoni...

Clay, Cassius Marcellus

(Encyclopedia)Clay, Cassius Marcellus, 1810–1903, American politician and diplomat, b. Madison co., Ky. Although he came from a slaveholding family, Clay early came to abhor the institution of slavery. In 1845 he...

Dennett, Tyler

(Encyclopedia)Dennett, Tyler dĕnˈĭt [key], 1883–1949, American historian and educator, b. Spencer, Wis. Dennett was lecturer in American history at Johns Hopkins (1923–24) and at Columbia (1927–28), chief ...