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samarium
(Encyclopedia)samarium səmârˈēəm [key], metallic chemical element; symbol Sm; at. no. 62; at. wt. 150.36; m.p. 1,072℃; b.p. 1,791℃; sp. gr. 7.54 at 20℃; valence +2 or +3. Samarium is a lustrous silver-wh...potlatch
(Encyclopedia)potlatch pŏtˈlăchˌ [key], ceremonial feast of the natives of the NW coast of North America, entailing the public distribution of property. The host and his relatives lavishly distributed gifts to ...Leo I, Saint, pope
(Encyclopedia)Leo I, Saint (Saint Leo the Great), c.400–461, pope (440–61), an Italian; successor of St. Sixtus III. A Doctor of the Church, he was one of the greatest pontiffs of the early years of the church....Leo X, pope
(Encyclopedia)Leo X, 1475–1521, pope (1513–21), a Florentine named Giovanni de' Medici; successor of Julius II. He was the son of Lorenzo de' Medici, was made a cardinal in his boyhood, and was head of his fami...Las Casas, Bartolomé de
(Encyclopedia)Las Casas, Bartolomé de bärtōlōmāˈ dā läs käˈsäs [key], 1474–1566, Spanish missionary and historian, called the apostle of the Indies. He went to Hispaniola with his father in 1502, and e...graffito
(Encyclopedia)graffito gräf-fēˈtō [key]. 1 Method of ornamenting architectural plaster surfaces. The designs are produced by scratching a topcoat of plaster to reveal an undercoat of contrasting and deeper colo...Grey of Fallodon, Edward Grey, 1st Viscount
(Encyclopedia)Grey of Fallodon, Edward Grey, 1st Viscount fălˈədən [key], 1862–1933, British statesman. He entered Parliament as a Liberal in 1885 and became (1905) foreign secretary in the difficult period p...hafnium
(Encyclopedia)hafnium hăfˈnēəm [key], metallic chemical element; symbol Hf; at. no. 72; at. wt. 178.49; m.p. about 2,227℃; b.p. 4,602℃; sp. gr. 13.31 at 20℃; valence +4. Hafnium is a lustrous, ductile, si...humor
(Encyclopedia)humor, according to ancient theory, any of four bodily fluids that determined human health and temperament. Hippocrates postulated that an imbalance among the humors (blood, phlegm, yellow bile, and b...Arras, Treaty of
(Encyclopedia)Arras, Treaty of. 1 Treaty of 1435, between King Charles VII of France and Duke Philip the Good of Burgundy. Through it, France and Burgundy became reconciled. Philip deserted his English allies and r...Browse by Subject
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