1991 (MCMXCI)was a common year starting on Tuesday of the Gregorian calendar (dominical letter F), the 1991st year of the Common Era (CE) and Anno Domini (AD) designations, the 991st year of the 2nd millennium, the 91st year of the 20th century, and the 2nd year of the 1990s decade.It was the year that is usually considered the final year of the Cold War that had begun in the late 1940s. During the year, the Union of Soviet Socialist Republics collapsed into fifteen sovereign republics.
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