20th anniversary of the Fall of Berlin Wall: 9th Nov., 1989

"During a revolutionary wave sweeping across the Eastern Bloc, the East German government announced on November 9, 1989, after several weeks of civil unrest, that all GDR citizens could visit West Germany and West Berlin. Crowds of East Germans climbed onto and crossed the wall, joined by West Germans on the other side in a celebratory atmosphere. Over the next few weeks, parts of the wall were chipped away by a euphoric public and by souvenir hunters; industrial equipment was later used to remove almost all of the rest. The fall of the Berlin Wall paved the way for German reunification, which was formally concluded on October 3, 1990."
From www.wikipedia.com