Representatives of Iranian leader Ruhollah Khomeini delivered a letter to Mikhail Gorbachev, inviting him to consider Islam as an alternative to communism, and predicting the dissolution of the Soviet Bloc.

Cold War: During a speech at the Brandenburg Gate by the Berlin Wall, US president Ronald Reagan challenged Soviet leader Mikhail Gorbachev to "tear down this wall!" (speech featured).

The first of five summits (pictured) between Soviet general secretary Mikhail Gorbachev and U.S. president Ronald Reagan began in Geneva.

In a nationally televised speech, Mikhail Gorbachev resigned as President of the Soviet Union.