125 people died trying to pass through the berlin wall
East German authorities order stricter border controls
The SED Politburo introduces a change in economic policy
Begin of discussions and negotiations between the state secretaries
The Four Power Agreement over Berlin is reached about negotiation visiting between West and East Berlin.
The Transit Agreement is reached that arranged the matters of visits from one side to the other only in emergency
The Basic Treaty is signed in which both West and East Berlin committed themselves to developing normal relations on the basis of equality
East and West Germany establish formal diplomatic ties
An explicit firing order is issued to a special team of Stasi agents tasked with infiltrating regular units of border guards to prevent their colleagues from defecting
1975 the third generation of Wall was replaced by the fourth generation
Build of a second wall starts to be built
three teenagers die in a riot about tearing down the Berlin wall
President Ronald Reagan visits Berlin and tells Soviet leader Mikhail Gorbachev to tear down the Berlin Wall.