Columbia Encyclopedia

(Encyclopedia) Homo erectus hōˈmō ērĕkˈtəs [key], extinct hominin living between 1.6 million and 250,000 years ago, possibly as late as c.110,000 years ago. Homo erectus is thought to have evolved in Africa f...

(Encyclopedia) logic, the systematic study of valid inference. A distinction is drawn between logical validity and truth. Validity merely refers to formal properties of the process of inference. Thus, a conclusion w...

(Encyclopedia) Mun, Thomas mŭn [key], 1571–1641, English writer on economics. A merchant in Italy and the Levant, he became (1615) a director in the East India Company. In his Discourse of Trade from England unto...

(Encyclopedia) Murphy, Charles Francis, 1858–1924, American political boss, b. New York City. He was the owner of many saloons in New York City and took a keen interest in Democratic politics. His services to Tamm...

(Encyclopedia) Sheeler, Charles, 1883–1965, American painter and photographer, b. Philadelphia, studied at the School of Industrial Art there and later at the Pennsylvania Academy of the Fine Arts under William M....

(Encyclopedia) Diana, princess of Wales, 1961–97, wife of Charles, prince of Wales, heir to the British throne. The daughter of the 8th Earl Spencer, Lady Diana Frances Spencer was a kindergarten teacher in London...

(Encyclopedia) Harrington, James, 1611–77, English political writer. His Commonwealth of Oceana (1656) pictured a utopian society in which political authority rested entirely with the landed gentry. Harrington adv...

(Encyclopedia) Hale, Benjamin, 1797–1863, American educator, b. Newburyport, Mass., grad. Bowdoin, 1818. He served as tutor at Bowdoin and in 1823 founded and became principal of Gardiner Lyceum, Gardiner, Maine, ...

(Encyclopedia) home economics, study of homemaking and the relation of the home to the community. Formerly limited to problems of food (nutrition and cookery), clothing, sewing, textiles, household equipment, housec...

(Encyclopedia) W. A. C. Bennett Dam: see Peace, river, Canada. ...