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mathematics

(Encyclopedia)mathematics, deductive study of numbers, geometry, and various abstract constructs, or structures; the latter often “abstract” the features common to several models derived from the empirical, or ...

Colombia

(Encyclopedia)CE5 Colombia kəlŭmˈbēə, Span. kōlōmˈbyä [key], officially Republic of Col...

Civil War, in U.S. history

(Encyclopedia)Civil War, in U.S. history, conflict (1861–65) between the Northern states (the Union) and the Southern states that seceded from the Union and formed the Confederacy. It is generally known in the So...

science

(Encyclopedia)science [Lat. scientia=knowledge]. For many the term science refers to the organized body of knowledge concerning the physical world, both animate and inanimate, but a proper definition would also hav...

Peru, country, South America

(Encyclopedia)CE5 Peru pāro͞oˈ [key], officially Republic of Peru, republic (2015 est. pop. 31,377,000), 496,220 sq mi (1,285,210 sq km), W South America. It borders on the Pacific Ocean in the west, on Ecuad...

opera

(Encyclopedia)opera, drama set to music. In the early part of the 20th cent. the foremost operatic composer was Richard Strauss. Although influenced by Wagner, he composed operas with even richer and more stunnin...

Venezuela

(Encyclopedia)CE5 Venezuela vĕnəzwāˈlə, Span. vānāswāˈlä [key], officially the Bolivarian Republic of Venezuela, republic (2015 est. pop. 29,275,000), 352,143 sq mi (912,050 sq km), N South America. Ve...

Ukraine

(Encyclopedia)CE5 Ukraine yo͞oˈkrān, yo͞okrānˈ [key], Ukr. Ukraina, republic (2015 est. pop. 44,658,000), 232,046 sq mi (601,000 sq km), E Europe. It borders on Poland in the northwest; on Slovakia, Hungar...

Iraq

(Encyclopedia)CE5 Iraq or Irak both: ēräkˈ, ĭrăkˈ [key], officially Republic of Iraq, republic (2005 est. pop. 26,075,000), 167,924 sq mi (434,924 sq km), SW Asia. Iraq is bordered on the south by Kuwait, ...

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