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Longstreet, James

(Encyclopedia)Longstreet, James, 1821–1904, Confederate general in the American Civil War, b. Edgefield District, S.C. He graduated (1842) from West Point and served in the Mexican War, reaching the rank of major...

Kosciusko, Thaddeus

(Encyclopedia)Kosciusko or Kosciuszko, Thaddeus kŏsˌēŭsˈkō [key], Pol. Tadeusz Andrzej Bonawentura Košciuszko, 1746–1817, Polish general. Trained in military academies in Warsaw and Paris, he offered his s...

Nevins, Allan

(Encyclopedia)Nevins, Allan, 1890–1971, American historian, b. Camp Point, Ill. After studying at the Univ. of Illinois, he followed a career in journalism until 1927. Teaching at Columbia from 1928, he became a ...

Johnston, Joseph Eggleston

(Encyclopedia)Johnston, Joseph Eggleston, 1807–91, Confederate general, b. Prince Edward co., Va., grad. West Point, 1829. He served against the Seminole in Florida and with distinction under Winfield Scott in th...

Frémont, John Charles

(Encyclopedia)Frémont, John Charles, 1813–90, American explorer, soldier, and political leader, b. Savannah, Ga. He taught mathematics to U.S. naval cadets, then became an assistant on a surveying expedition (18...

Hudson, river, United States

(Encyclopedia)Hudson, river, c.315 mi (510 km) long, rising in Lake Tear of the Clouds, on Mt. Marcy in the Adirondack Mts., NE N.Y., and flowing generally S to Upper New York Bay at New York City; the Mohawk River...

spear

(Encyclopedia)spear, primitive weapon consisting of a wooden shaft tipped with a sharp point, usually 8 to 9 ft (2.4–2.7 m) in length. The point may be carved from the shaft and hardened in a fire, or made from a...

freezing

(Encyclopedia)freezing, change of a substance from the liquid to the solid state. The temperature at which freezing occurs for a pure crystalline solid is called the freezing point and is a characteristic of the pa...

vaporization

(Encyclopedia)vaporization, change of a liquid or solid substance to a gas or vapor. There is fundamentally no difference between the terms gas and vapor, but gas is used commonly to describe a substance that appea...

diminishing returns, law of

(Encyclopedia)diminishing returns, law of, in economics, law stating that if one factor of production is increased while the others remain constant, the overall returns will relatively decrease after a certain poin...