dec 28, 1989 - Berlin Wall falls (Mikhail Gorbachev's role)
The Berlin Wall was a huge wall originally constructed by the Communist Government of east Germany to keep Western "fascists" from entering the country. A Russian man named Mikhail Gorbachev was the one who introduced a foreign policy and eventually, on December 28, 1989, people were allowed to finally cross the wall.
Added to timeline:
Cold War Timeline