Final answer:
The chronological order of the given historical events is as follows: 4, 8, 9, 12, 15, 10, 6, 7, 5, 3, 1, 2, 14, 13, 11, 16.
Step-by-step explanation:
- 4. Ronald Reagan came with his SDI.
- 8. 'Tear down this wall' speech by Reagan in West Berlin.
- 9. Hungary opens the border with Austria and with it the Iron Curtain.
- 12. Günther Schabowski announced that the border between East and West Berlin would be open.
- 15. 'Velvet revolution' broke out in Czechoslovakia.
- 10. A large peace demonstration took place in Amsterdam.
- 6. East German refugees left Prague for the BRD on special trains.
- 7. Major demonstrations took place week after week in Leipzig.
- 5. In the Soviet Union, the KGB staged a coup, but it failed.
- 3. Gorbachev attended the 40th anniversary of the GDR.
- 1. The Brandenburg Gate in Berlin reopened for the first time in many years.
- 2. A large peace demonstration took place in The Hague.
- 14. The NATO double decision was announced.
- 13. The Soviet republics of Estonia, Latvia, and Lithuania again became independent states.
- 11. Gorbachev announced in a speech that he was stepping down as President of the Soviet Union.
- 16. Reagan and Gorbachev signed the INF treaty.