The Soviet Union, or USSR, was a state that was formed after the Russian revolution in 1917, and the subsequent three-year civil war. It was founded on a political system of Marxist socialism ...

Mikhail Gorbachev, General Secretary, March 11, 1985 - March 14, 1990 and President of the Soviet Union March 14, 1990 - December 25, 1991. What does the USSR stand for? The USSR stands for the Union ...

National Archives and Records Administration The space race between the United States and the Soviet Union stepped up a gear on May 25, 1961, when American President John F. Kennedy announced that his ...