Answer:
The Berlin Wall fall
Explanation:
The Berlin Wall falls on 9 November 1989. The era of divided Germany between the East and the West comes to an end. The Berlin Wall created to prevent people from leaving East German, which came under the communism (Russia). The East German government construct the wall in 1961.
After the fall of the Berlin Wall, Communism began to crumble, led many nations including East Germany, Poland, Romania, Czechoslovakia, and Hungary, to join the European Union.
