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Moscow, grand duchy of

(Encyclopedia)Moscow or Muscovy, grand duchy of, state existing in W central Russia from the late 14th to mid-16th cent., with the city of Moscow as its nucleus. Its formation and eventual ascendancy over other Rus...

oratory

(Encyclopedia)oratory, the art of swaying an audience by eloquent speech. In ancient Greece and Rome oratory was included under the term rhetoric, which meant the art of composing as well as delivering a speech. Or...

O'Connor, Feargus

(Encyclopedia)O'Connor, Feargus fûrˈgəs [key], 1794–1855, Irish Chartist leader. Elected to the Parliament of 1832 as a supporter of Daniel O'Connell, he soon quarreled with O'Connell and was forced out of Par...

Wilderness Road

(Encyclopedia)Wilderness Road, principal avenue of westward migration for U.S. pioneers from c.1790 to 1840, blazed in 1775 by the American frontiersman Daniel Boone and an advance party of the Transylvania Company...

Wiseman, Nicholas Patrick Stephen

(Encyclopedia)Wiseman, Nicholas Patrick Stephen, 1802–65, English prelate, cardinal of the Roman Catholic Church, b. Seville, Spain, of Irish-English parentage. In 1836 he founded (with Daniel O'Connell) the Dubl...

beat generation

(Encyclopedia)beat generation, term applied to certain American artists and writers who were popular during the 1950s. Essentially anarchic, members of the beat generation rejected traditional social and artistic f...

americium

(Encyclopedia)americium ămərĭˈshēəm [key], artificially produced radioactive chemical element; symbol Am; at. no. 95; mass no. of most stable isotope 243; m.p. about 1,175℃; b.p. about 2,600℃; sp. gr. 13....

Harriman, Edward Henry

(Encyclopedia)Harriman, Edward Henry, 1848–1909, American railroad executive, b. Hempstead, N.Y.; father of William Averell Harriman. He became a stockbroker in New York City and soon entered the railroad field, ...

Moore, Douglas Stuart

(Encyclopedia)Moore, Douglas Stuart, 1893–1969, American composer and teacher, b. Cutchogue, N.Y. Moore studied with Horatio Parker, Vincent D'Indy, Nadia Boulanger, and Ernest Bloch. In 1926 he joined the music ...

Euler, Leonhard

(Encyclopedia)Euler, Leonhard lāˈônhärt oiˈlər [key], 1707–83, Swiss mathematician. Born and educated at Basel, where he knew the Bernoullis, he went to St. Petersburg (1727) at the invitation of Catherine ...