In which year did the Berlin Wall fall?

Correct answer: 1989

The Berlin Wall opened and began to fall on 9 November 1989 after growing public protests and political changes in East Germany. Its fall allowed freer movement between East and West Berlin and became a major symbol of the weakening of communist governments in Eastern Europe. The event is commonly associated with the end of the Cold War, although the Soviet Union formally dissolved later, in 1991. Thus, the answer is 1989.