Columbia Encyclopedia

(Encyclopedia) Boyd, Louise Arner, 1887–1972, American arctic explorer, b. San Rafael, Calif. She led a series of scientific explorations on the east coast of Greenland. The expedition of 1933, sponsored by the Am...

(Encyclopedia) Calderón Bridge käldārōnˈ [key], site of a decisive battle in the Mexican revolution against Spain, fought on the Lerma River E of Guadalajara, Jalisco, Mexico. On Jan. 17, 1811, insurgents comma...

(Encyclopedia) Wyatt, Sir Thomas, c.1520–54, English soldier and conspirator; son of the poet Sir Thomas Wyatt. In Jan., 1554, when Queen Mary's intention to marry Philip II of Spain was announced, Wyatt joined a ...

(Encyclopedia) Bastogne bästôˈnyə [key], Du. Bastenaken, town, Luxembourg prov., SE Belgium, in the Arde...

(Encyclopedia) Tet offensive, 1968, a series of crucial battles in the Vietnam War. On Jan. 31, 1968, the first day of the celebration of the lunar new year, Vietnam's most important holiday, the Vietnamese Communis...

(Encyclopedia) Leiden or Leyden both: līˈdən [key], city (1994 pop. 114,892), South Holland prov., W Netherlands, on the Old Rhine (Oude Rijn) River. Manufactures include medical equipment, machinery, graphic art...

(Encyclopedia) Montreal Protocol, officially the Protocol on Substances That Deplete the Ozone Layer, treaty signed on Sept. 16, 1987, at Montreal by 25 nations; 197 nations are now parties to the accord. The protoc...

(Encyclopedia) Averescu, Alexander ävĕrĕsˈko͞o [key], 1859–1938, Romanian general and political leader. He served as a volunteer in the 1877–78 war against the Ottoman Empire and rose to become minister of ...

(Encyclopedia) Novotný, Antonín änˈtônyēn nôˈvôtnē [key], 1904–75, Czechoslovakian Communist leader. A founding member (1921) of the Communist party, he participated (1948) in the Communist seizure of po...

(Encyclopedia) Magruder, John Bankhead məgro͞oˈdər [key], 1810–71, Confederate general in the American Civil War, b. Winchester, Va. His reckless daring in the Mexican War won him quick promotion in the army. ...