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Marion, Francis

(Encyclopedia)Marion, Francis mârˈēən [key], c.1732–1795, American Revolutionary soldier, known as the Swamp Fox, b. near Georgetown, S.C. He was a planter and Indian fighter before joining (1775) William Mou...

Mahan, Alfred Thayer

(Encyclopedia)Mahan, Alfred Thayer məhănˈ [key], 1840–1914, U.S. naval officer and historian, b. West Point, N.Y. A Union naval officer in the Civil War, he later lectured on naval history and strategy at the ...

Kelly, John

(Encyclopedia)Kelly, John, 1822–86, American politician, boss of Tammany Hall, b. New York City. He entered politics at an early age. At first he opposed Tammany Hall, but later (1853) joined the organization and...

camouflage

(Encyclopedia)camouflage kămˈəfläzh [key], in warfare, the disguising of objects with artificial aids, especially for the purpose of making them blend into their surroundings or of deceiving the observer as to ...

Valens

(Encyclopedia)Valens väˈlənz [key], c.328–378, Roman emperor of the East (364–78). Brother and coregent of Valentinian I, Valens followed in most respects his brother's policies but, unlike him, embraced Ari...

Pyrenees, Peace of the

(Encyclopedia)Pyrenees, Peace of the, 1659, treaty ending the warfare between France and Spain that, continuing after the Peace of Westphalia, which ended the Thirty Years War, had been complicated by French interv...

Brest-Litovsk, Treaty of

(Encyclopedia)Brest-Litovsk, Treaty of brĕst-lĭtôfskˈ [key], separate peace treaty in World War I, signed by Soviet Russia and the Central Powers, Mar. 3, 1918, at Brest-Litovsk (now Brest, Belarus). After the ...

enzyme

(Encyclopedia)enzyme, biological catalyst. The term enzyme comes from zymosis, the Greek word for fermentation, a process accomplished by yeast cells and long known to the brewing industry, which occupied the atten...

homosexuality

(Encyclopedia)homosexuality, a term created by 19th cent. theorists to describe a sexual and emotional interest in members of one's own sex. Today a person is often said to have a homosexual or a heterosexual orien...

space medicine

(Encyclopedia)space medicine, study of the medical and biological effects of space travel on living organisms. The principal aim is to discover how well and for how long humans can withstand the extreme conditions ...