1989: Berliners celebrate the fall of the Wall - BBC News
Kennedy visits Berlin and declares: “Ich bin ein Berliner.” (“I am a Berliner.”) After 7 rounds of negotiations between the Senate of Berlin and the East German authorities, an administrative agreement is signed allowing West Berliners to visit their relatives in East Berlin on a limited basis. A new Wall generation, the third, is introduced to replace the old construction.
The Fall of Berlin Wall - Berlin Wall History - Dailysoft
After 1961, the Wall and other fortifications along the 860-mile (1,380-kilometre) border shared by East and West Germany have kept most East Germans in.
At midnight East Germany's Communist rulers gave permission for gates along the Wall to be opened after hundreds of people converged on crossing points.