历史上的今天-Today in History 2010-12-27（在线收听）

 December 27th, 1979The Soviet Union invades neighboring Afghanistan in Central Asia beginning a decade-long occupation. Soviet forces leave after the occupation becomes a quiet mire and the communist superpower faces collapse. 1831Naturalist Charles Darwin sets out an around-the-world voyage aboard the HMS Beagle. Darwin’s discoveries during the almost 5-year-long journey help form the basis of his theories on evolution and natural selection. 1932Radio City Music Hall -- home of those hihg-kicking dancers known as the “Rockettes” -- opens in New York.