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Securities and Exchange Commission

(Encyclopedia) Securities and Exchange Commission (SEC), agency of the U.S. government created by the Securities Exchange Act of 1934 and charged with protecting the interests of the public and…

Central Intelligence Agency

(Encyclopedia) Central Intelligence Agency (CIA), independent executive bureau of the U.S. government established by the National Security Act of 1947, replacing the wartime Office of Strategic…

Lewis and Clark expedition

(Encyclopedia) Lewis and Clark expedition, 1803–6, U.S. expedition that explored the territory of the Louisiana Purchase and the country beyond as far as the Pacific Ocean. The men were gathered…

air pollution

(Encyclopedia) air pollution, contamination of the air by noxious gases and minute particles of solid and liquid matter (particulates) in concentrations that endanger health. The major sources of air…

Socrates

(Encyclopedia) SocratesSocratessŏkˈrətēz [key], 469–399 b.c., Greek philosopher of Athens. Famous for his view of philosophy as a pursuit proper and necessary to all intelligent men, he is one of the…

Khrushchev, Nikita Sergeyevich

(Encyclopedia) Khrushchev, Nikita SergeyevichKhrushchev, Nikita Sergeyevichnyĭkēˈtə syĭrgāˈyəvĭch khr&oobreve;schôfˈ [key], 1894–1971, Soviet Communist leader, premier of the USSR (1958–64), and…

Douglas, Stephen Arnold

(Encyclopedia) Douglas, Stephen Arnold, 1813–61, American statesman, b. Brandon, Vt. The Democratic national convention at Charleston, S.C., in 1860 adopted Douglas's recommendations in a platform…

prostitution

(Encyclopedia) prostitution, act of granting sexual access for payment. Although most commonly conducted by females for males, it may be performed by females or males for either females or males.…

stem cells

(Encyclopedia) stem cells, unspecialized human or animal cells that can produce mature specialized body cells and at the same time replicate themselves. Embryonic stem cells are derived from a…

Kashmir

(Encyclopedia) KashmirKashmirkăshmērˈ, kăshˈmēr [key], region and former princely state, 85,714 sq mi (222,236 sq km), NW India, NE Pakistan, and SW China. Kashmir is bordered on the west by Pakistan…