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November 1980
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September 1983
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March 1985
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February 1986
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June 1987
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May 1989
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November 1989
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October 1990
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Ronald Reagan elected as US president
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Soviet fighters shoot down Korean Air Flight 007
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Mikhail Gorbachev becomes Soviet Union leader
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Gorbachev unveils his glasnost, perestroika policies
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Reagan urges Gorbachev to "tear down this wall"
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Chinese troops crush protests in Tiananmen Square
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Popular unrest brings the fall of the Berlin Wall
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East and West Germany reunify after 45 years