The Berlin wall was built by the communist government of East Germany to split east and west Germany. Because they didn't want all of the east Germans to go to west Germany.
They guarded the wall with lots of men for extra protection and if people tried to get over they would shoot and kill them. The wall was assembled the day of august 13 1961 and lasted until In 1989, a series of radical events occurred in the Eastern bloc. associated with the liberalization of the Eastern Bloc's authoritarian systems and the erosion of political power in the pro-Soviet governments in nearby Poland and Hungary. After several weeks of civil unrest, the East German government announced on 9 November 1989 that all GDR citizens could visit West Germany and West Berlin. Crowds of East Germans crossed and climbed onto the wall, joined by West Germans on the other side in a celebratory atmosphere. souvenir hunters chipped away parts of the wall; the governments later used industrial equipment to remove most of the rest. The physical Wall itself was primarily destroyed in 1990. The fall of the Berlin Wall paved the way for German reunification, which was formally concluded on 3 October 1990.