Columbia Encyclopedia

(Encyclopedia) American Colonization Society, organized Dec., 1816–Jan., 1817, at Washington, D.C., to transport free blacks from the United States and settle them in Africa. The freeing of many slaves, principall...

(Encyclopedia) americium ămərĭˈshēəm [key], artificially produced radioactive chemical element; symbol Am; at. no. 95; mass no. of most stable isotope 243; m.p. about 1,175℃; b.p. about 2,600℃; sp. gr. 13....

(Encyclopedia) Abramoff scandal, in U.S. history, political corruption scandal resulting from criminal conduct on the part of lobbyist Jack Abramoff (1959–) and his associates. Abramoff was a Republican activist w...

(Encyclopedia) Lumumba, Patrice Emergy pətrēsˈ ĕmârzhēˈ lo͞omo͞omˈbä [key], 1925–61, pr...

(Encyclopedia) curium kyo͝orˈēəm [key], artificially produced radioactive chemical element; symbol Cm; at. no. 96; mass no. of most stable isotope 247; m.p. about 1,340℃; b.p. 3,110℃; sp. gr. 13.5 (calculate...

(Encyclopedia) Pulitzer, Joseph po͝oˈlĭtsər, pyo͞oˈ– [key], 1847–1911, American newspaper publisher and politician, b. Hungary. He emigrated to the United States in 1864, served a year in the Union army in...

(Encyclopedia) Brook Farm, 1841–47, an experimental farm at West Roxbury, Mass., based on cooperative living. Founded by George Ripley, a Unitarian minister, the farm was initially financed by a joint-stock compan...

(Encyclopedia) Boswell, James, 1740–95, Scottish author, b. Edinburgh; son of a distinguished judge. At his father's insistence the young Boswell reluctantly studied law. Admitted to the bar in 1766, he practiced ...

(Encyclopedia) Roanoke Island, 12 mi (19 km) long and 3 mi (4.8 km) wide, NE N.C., off the Atlantic coast between Croatan (W) and Roanoke (E) sounds in the Outer Banks. Manteo is the chief town, and tourism and fish...

(Encyclopedia) Pan-Africanism, general term for various movements in Africa that have as their common goal the unity of Africans and the elimination of colonialism and white supremacy from the continent. However, on...