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history
(Encyclopedia)history, in its broadest sense, is the story of humanity's past. It also refers to the recording of that past. The diverse sources of history include books, newspapers, printed documents, personal pap...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 ...photography, still
(Encyclopedia)photography, still, science and art of making permanent images on light-sensitive materials. See also photographic processing; motion picture photography; motion pictures. By the end of ...American Revolution
(Encyclopedia)American Revolution, 1775–83, struggle by which the Thirteen Colonies on the Atlantic seaboard of North America won independence from Great Britain and became the United States. It is also called th...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...English literature
(Encyclopedia)English literature, literature written in English since c.1450 by the inhabitants of the British Isles; it was during the 15th cent. that the English language acquired much of its modern form. For the...Browse by Subject
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