The Berlin Wall

After world war two the Berlin Wall was constructed to separate the communist east side of Berlin from the western backed west side of Berlin. The events that led to the building of the wall was the ending of ww2 and Germany being split into four zones. The four zones were the American, British, and French in the west and then the Soviets in the east. Also there was a valid interzonepass required to travel between each zone and then a difference in currency between each zone. These events resulted in the wall to be put up. The life during the wall was very hectic for Berliners. The east side was communist controlled and that was a change for Berliners who lived there before the wall because they never use to be communist. Also this separated families because they weren't allowed to travel between each side of the wall. Three events that led to the fall of the wall were JFK's support for Germany to be reunited, then slowly Germanys were allowed to pass to the other sides of the walls and finally Ronald Reagan meeting with the foreign leaders trying to have the wall come to a peaceful end to try and reunite Berlin.

http://www.history.com/topics/berlin-wall
http://www.dailysoft.com/berlinwall/history/berlinwall-timeline.htm