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pole vaulting

(Encyclopedia)pole vaulting: see track and field athletics. ...

algebraic geometry

(Encyclopedia)algebraic geometry, branch of geometry, based on analytic geometry, that is concerned with geometric objects (loci) defined by algebraic relations among their coordinates (see Cartesian coordinates). ...

Algerine War

(Encyclopedia)Algerine War ălˈjərēnˌ [key], early 19th-century conflict between Algiers and the United States. The Tripolitan War (1801–5) had brought a temporary halt to the pirate activities of the Barbary...

Green, Samuel

(Encyclopedia)Green, Samuel, 1615–1702, early American printer. He established himself at Cambridge, Mass., in 1649, using a press owned by Henry Dunster, the first president of Harvard. Green succeeded Stephen D...

Grove, Andy

(Encyclopedia)Grove, Andy (Andrew Stephen Grove) [key], 1936–2016, American computer-industry executive, b. Budapest, Hungary, as András István Gróf, immigrated to the United States 1957, Ph.D. Univ. of Calif...

Jackson, Ketanji Onyika Brown

(Encyclopedia)Jackson, Ketanji Onyika Brown, American lawyer, jurist, and Supreme Court Justice, b. Washington, D.C., 1970; grad. Harvard-Radcliff (B.A., cum laud...

Kotelawala, Sir John Lionel

(Encyclopedia)Kotelawala, Sir John Lionel, 1895–1980, Sri Lankan political and military leader. After studying at Christ College, Cambridge, he returned to Sri Lanka (then the British colony of Ceylon), joining t...

Borden, Gail

(Encyclopedia)Borden, Gail, 1801–74, American dairyman, surveyor, and inventor, b. Norwich, N.Y. He was for several years a deputy surveyor in Mississippi; afterward he joined the colony of Stephen F. Austin in T...

Orkhan

(Encyclopedia)Orkhan ôr-khänˈ [key], 1288?–1362?, Ottoman sultan (1326–1362?), son and successor of Osman I as leader of the Ottoman Turks. He defeated Byzantine Emperor Andronicus III and conquered large pa...

Peter Damian, Saint

(Encyclopedia)Peter Damian, Saint dāˈmēən [key], Ital. Pietro Damiani, 1007?–1072, Italian reformer, Doctor of the Church, b. Ravenna. He became a Camaldolese monk at Fonte-Avellino (near Gubbio) and because ...