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Cather, Willa Sibert

(Encyclopedia)Cather, Willa Sibert sīˈbərt kăᵺˈər [key], 1873–1947, American novelist and short-story writer, b. Winchester, Va., considered one of the great American writers of the 20th cent. When she wa...

steel

(Encyclopedia)steel, alloy of iron, carbon, and small proportions of other elements. Iron contains impurities in the form of silicon, phosphorus, sulfur, and manganese; steelmaking involves the removal of these imp...

Boone, Daniel

(Encyclopedia)Boone, Daniel, 1734–1820, American frontiersman, b. Oley (now Exeter) township, near Reading, Pa. The Boones, English Quakers, left Pennsylvania in 1750 and settled (1751 or 1752) in the Yadkin vall...

Whistler, James Abbott McNeill

(Encyclopedia)Whistler, James Abbott McNeill, 1834–1903, American painter, etcher, wit, and eccentric, b. Lowell, Mass. Whistler was dismissed from West Point for insufficient knowledge of chemistry and from the ...

Stein, Gertrude

(Encyclopedia)Stein, Gertrude, 1874–1946, American author and patron of the arts, b. Allegheny (now part of Pittsburgh), Pa. A celebrated personality, she encouraged, aided, and influenced—through her patronage...

broadcasting

(Encyclopedia)broadcasting, transmission, usually using radio frequencies, of sound or images to a large number of radio or television receivers. In the United States the first regularly scheduled radio broadcasts ...

pollution

(Encyclopedia)pollution, contamination of the environment as a result of human activities. The term pollution refers primarily to the fouling of air, water, and land by wastes (see air pollution; water pollution; s...

museums of art

(Encyclopedia)museums of art, institutions or buildings where works of art are kept for display or safekeeping. The word museum derives from the Greek mouseion, meaning temple to the works of the Muses. This articl...

French and Indian Wars

(Encyclopedia)French and Indian Wars, 1689–1763, the name given by American historians to the North American colonial wars between Great Britain and France in the late 17th and the 18th cent. They were really cam...

Americas, antiquity and prehistory of the

(Encyclopedia)Americas, antiquity and prehistory of the, study of the origins of the aboriginal peoples of the Americas. Archaeologists believe humans had entered and occupied much of the Americas by the end of the...