Berlin Wall was built in 1961. Before the wall was built, people from East Berlin were escaping to West Berlin. The wall was built to deter any more immigration. It was torn down starting November 9, 1989.
Berlin Wall was opened in 1989. The almost 28-mile long wall was built in 1961 to separate East Berlin from West Berlin. People celebrated when they could freely walk from one part of the city to another.