In 1961, East Germany erected a wall -- initially barbed wire, eventually concrete -- in the middle of Berlin to prevent its citizens from fleeing the communist country to West Germany during the height of the Cold War. It has been reported that 136 people died while trying to escape, but the total number is unknown. The wall finally came down at the beginning of November in 1989, part of the reunification of East and West Germany. Here are images from this past weekendâs recognition of the construction of the wall 50 years ago, as well as historic images. -- Lloyd Young ( 30 photos total