Mikhail Gorbachev was elected as the Soviet Union’s first President.
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Ronald Reagan challenges Mikhail Gorbachev to 'tear down this wall'.
Soviet President Mikhail Gorbachev and US President George H. W. Bush declared an end to the Cold War.
Mikhail Gorbachev resigned from his position as Prime Minister of the Soviet Union.
US President Ronald Reagan and Soviet leader Mikhail Gorbachev signed a treaty eliminating medium-range nuclear missiles.
Mikhail Gorbachev is awarded the Nobel Peace Prize.
