Berlin Wall
The Berlin wall eventually started to fall once people rioted. Many jumped on top of the wall, and even crowded against it. This caused the wall to collapse in some areas, and more people could get through to the refugee camps that were set up on the other side.  "Tear down this wall!" was a speech made by United States President Ronald Reagan to Soviet Union leader Mikhail Gorbachev to destroy the wall. The speech was made at the Brandenburg Gate near the Berlin Wall on June 12, 1987. It was made to honor the 750th anniversary of Berlin. His speech and its fallout might have aided in the wall's demolition.