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Eduncle Best Answer
Breaching of Berlin Wall in 1989 is taken as signaling the end of Cold War. In 1989 a series of revolutions in nearby Eastern Bloc countries—Poland and Hungary in particular—caused a chain reaction in East Germany that ultimately resulted in the demise of the Wall. ... The “fall of the Berlin wall” paved the way for German reunification, which formally took place on 3 October 1990.