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World War II is has finished and Berlin is divided into four different regions: the American, British, French in the West and the Soviet in the East.
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The demarcation line between East and West Germany is safeguarded at the instigation of the Soviet Military administration.
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A thirty day valid Interzonenpass or Inter-zone passport is required to travel between the sectors in Germany. At this stage, It was still possible to cross between the two sectors, although it was becoming increasingly dangerous.
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Construction has ended of the Berlin Wall by the Soviet Union
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Currency reform occurs in Germany, it is now divided into two finanical zones.
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Construction of the Berlin Wall by the Soviet Union begins
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The United States begins the Berlin Airlift to keep Berlin supplied with food and fuel. Which are valuable resources that allow a region to function effectively
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Foundation of West Germany (Republic of Germany)
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The United States ends the Berlin Airlift
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Foundation of East Germnay (The German Democratic Republic) occurs
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Border between East and West Germany and between East Germany and West Berlin is closed. Only the border between East and West Berlin is still opened
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Uprising of East Berlin building workers against the imposition of increased working normal hours, they were suppressed by Soviet Union Tanks
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The Western Powers waive the Interzonen Pass, the Soviet Union follows but East German citizen need a permission to travel to the West.
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Leaving East Germany without permission is now forbidden and violatiors are prosecuted with prison up to three years
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The Berlin sectorial border between East and West Berlin is closed, barriers are now built.
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All crossing points are closed for West Berlin citizens
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A second Wall is being built to prevent escapes to the West. The first Wall is improved over the next years and it becomes difficult to distinguish between the first and the second generations of the Wall.
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President John Fitzgerald Kennedy visits Berlin and declares: “Ich bin ein Berliner.” (“I am a Berliner.”)
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After 7 rounds of negotiations between the Senate of Berlin and the East German authorities, an administrative agreement is signed allowing West Berliners to visit their relatives in East Berlin on a limited basis.
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A new Wall generation, the third, is introduced to replace the old construction. The new one consists of concrete slabs laid between H-shaped steel concrete supports. A round, 0,40 meter large concrete tube capped the wall making it more difficult to climb over.
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The Four Power Agreement over Berlin is reached. It charges the governments of West Berlin and the GDR with negotiating an accord that would regulate access to and from West Berlin from the FRG and secure the right of West Berliners to visit East Berlin and the GDR.
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East and West Germany establish formal diplomatic ties.
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President Ronald Reagan visits Berlin and calls on Soviet leader Mikhail Gorbachev to tear down the Berlin Wall.
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The Hungarian government opens border for East German refugees
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The East German government announces that visits in West Germany and West Berlin will be permitted. Thousands of East Berliners pass into West Berlin as border guards stand by. People begin tearing down the wall which is opened.
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Germany is fianly reunited
