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  Berlin was divided into 4 sections. The American, British, French to the West, and the Soviets to the East.
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  Soviet Military safeguarded the Berlin wall.
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  30 day valid interzonepass to be able to travel between sectors.
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  Soviet blockades west Germany.
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  Federal Republic of Germany is founded (West).
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  The border between East and West Germany is closed every where apart from Berlin. One crossing was left open.
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  Worker building on wall riot for better working conditions.
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  GDR made laws that made leaving East Germany illegal.
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  The Berlin border between East and West Berlin are closed and barriers are built.
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  Brandenburg gates are closed.
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  Crossing points for west Berliners were closed.
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  JFK visits Berlin and says "I am a Berliner."
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  After 2 years eastern citizens may visit the western side of Berlin.
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  Four agreement make it easier to visit west Berlin.
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  Ronald Reagan goes to Berlin to convince soviet leaders to tear down the Berlin wall.
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  Hungarian government opens borders for east German refugees.
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  Berlin wall is open.
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  Millions of people attend pro-democracy demonstration in eat Berlin main square.
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  Brandenburg walls open.
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  Germany is reunited.