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Pompeii

(Encyclopedia)Pompeii pŏmpāˈ, Ital. pōmpĕˈē [key], ancient city of S Italy, a port near Naples and at the foot of Mt. Vesuvius. Possibly an old Oscan settlement, it was a Samnite city for centuries before it...

Nero

(Encyclopedia)Nero (Nero Claudius Caesar) nērˈō [key], a.d. 37–a.d. 68, Roman emperor (a.d. 54–a.d. 68). He was originally named Lucius Domitius Ahenobarbus and was the son of Cnaeus Domitius Ahenobarbus (co...

Catiline

(Encyclopedia)Catiline (Lucius Sergius Catilina) kătˈĭlīn [key], c.108 b.c.–62 b.c., Roman politician and conspirator. At first a conservative and a partisan of Sulla, he was praetor in 68 b.c. and governor o...

stratification

(Encyclopedia)stratification (Lat.,=made in layers), layered structure formed by the deposition of sedimentary rocks. Changes between strata are interpreted as the result of fluctuations in the intensity and persis...

slate

(Encyclopedia)slate, fine-grained rock formed when sedimentary rocks such as shale are metamorphosed by great pressure. Slate splits into perfectly cleaved, broad thin layers; this characteristically regular and pl...

Potteries, the

(Encyclopedia)Potteries, the, area, c.9 mi (15 km) long and 3 mi (4.8 km) wide, Staffordshire, W central England, extending northwest-southeast in the upper Trent valley. The area includes Stoke-on-Trent and part o...

Lewiston

(Encyclopedia)Lewiston. 1 City (1990 pop. 28,082), seat of Nez Perce co., NW Idaho, at the Wash. line and at the junction of the Snake and Clearwater rivers; founded 1861. It is the commercial and industrial center...

Liberty party

(Encyclopedia)Liberty party, in U.S. history, an antislavery political organization founded in 1840. It was formed by those abolitionists, under the leadership of James G. Birney and Gerrit Smith, who repudiated Wi...

graphite

(Encyclopedia)graphite grăfˈīt [key], an allotropic form of carbon, known also as plumbago and black lead. It is dark gray or black, crystalline (often in the form of slippery scales), greasy, and soft, with a m...

Perelman, Grigori Yakovlevich

(Encyclopedia)Perelman, Grigori Yakovlevich, 1966–, Russian mathematician. After doing graduate work in the late 1980s for his Candidate of Science degree from Leningrad State Univ. (now St. Petersburg State Univ...
 

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