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hydrogen

(Encyclopedia)hydrogen hīˈdrəjən [key] [Gr.,=water forming], gaseous chemical element; symbol H; at. no. 1; interval in which at. wt. ranges 1.00784–1.00811; m.p. −259.14℃; b.p. −252.87℃; density 0.08...

abolitionists

(Encyclopedia)abolitionists, in U.S. history, particularly in the three decades before the Civil War, members of the movement that agitated for the compulsory emancipation of the slaves. Abolitionists are distingui...

Celtic languages

(Encyclopedia)Celtic languages, subfamily of the Indo-European family of languages. At one time, during the Hellenistic period, Celtic speech extended all the way from Britain and the Iberian Peninsula in the west ...

Boston, city, United States

(Encyclopedia)Boston, city (2020 pop. 692,600), state capital and seat of Suffolk co., E Mass., on Boston Bay, an arm of Massachusetts Bay; inc. 1822. The city includ...

Ottoman Empire

(Encyclopedia)CE5 Ottoman Empire (c.1683) Ottoman Empire ŏtˈəmən [key], vast state founded in the late 13th cent. by Turkish tribes in Anatolia and ruled by the descendants of Osman I until its dissolution ...

Bush, George Walker

(Encyclopedia)Bush, George Walker, 1946–, 43d President of the United States (2001–9), b. New Haven, Conn. The eldest son of President George H. W. Bush, he was was raised in Texas and, like his father, attende...

New Orleans

(Encyclopedia)New Orleans ôrˈlēənz –lənz, ôrlēnzˈ [key], city (2006 pop. 187,525), coextensive with Orleans parish, SE La., between the Mississippi River and Lake Pontchartrain, 107 mi (172 km) by water f...

Livingston

(Encyclopedia)Livingston, family of American statesmen, diplomats, and jurists. Edward Livingston,Edward Livingston, 1764–1836, b. Livingston Manor, was the son of Robert R. Livingston (1718–75) and brother o...

Iroquois Confederacy

(Encyclopedia)Iroquois Confederacy or Iroquois League ĭrˈəkwoiˌ, –kwäˌ [key], North American confederation of indigenous peoples, initially comprising the Mohawk, Oneida, Onondaga, Cayuga, and Seneca; the n...

English literature

(Encyclopedia)English literature, literature written in English since c.1450 by the inhabitants of the British Isles; it was during the 15th cent. that the English language acquired much of its modern form. For the...