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top

(Encyclopedia)top, toy with a tapering point on which it can be made to spin. Tops were known in antiquity and appeared in Europe during the Middle Ages; they are used today in many different regions of the world b...

atomism

(Encyclopedia)atomism, philosophic concept of the nature of the universe, holding that the universe is composed of invisible, indestructible material particles. The theory was first advanced in the 5th cent. b.c. b...

galleon

(Encyclopedia)galleon, oceangoing warship used by the European naval powers in the 15th and 16th cent. A large, cumbersome vessel, the galleon was three-masted and square-rigged, usually with two decks, and with it...

Eyzies-de-Tayac, Les

(Encyclopedia)Eyzies-de-Tayac, Les lā zāzēˈ-də-tīäkˈ [key], or Les Eyzies, village, Dordogn...

Caddo

(Encyclopedia)Caddo kădˈō [key], Native North Americans whose language belongs to the Caddoan branch of the Hokan-Siouan linguistic stock (see Native American languages). These people gave their name not only to...

Dawkins, Sir William Boyd

(Encyclopedia)Dawkins, Sir William Boyd, 1837–1929, English geologist and archaeologist. He was a member (1861–69) of the Geological Survey of Great Britain, curator (1870–90) of the Manchester Museum, and pr...

Delian problem

(Encyclopedia)Delian problem: see geometric problems of antiquity. ...

Alfonso V, king of Aragón and Sicily

(Encyclopedia)Alfonso V (Alfonso the Magnanimous), 1396–1458, king of Aragón and Sicily (1416–58) and of Naples (1443–58), count of Barcelona. He was the son of Ferdinand I, whom he succeeded in Aragón and ...

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