21 September 1937 - Funeral of President Masaryk, 17. 11. 1939 – Closure of Czech universities, 25. 2. 1948 - Communist coup d‘état in ČSR

21. 8. 1968 - Invasion of the Warsaw Pact troops, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

21. 8. 1968 - Invasion of the Warsaw Pact troops, 1976 – The Plastic People of the Universe trial, 26 April 1986 - Chernobyl disaster, 21. 8. 1988 – 17. 11. 1989 – Street demonstrations against the communist regime, 1989 - The fall of the iron curtain and 3 more anniversaries

9. 5. 1960 - Amnesty of political prisoners, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

23. 2. 1949 – Beginning the forced agricultural collectivisation, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

30. 5. 1945 – 29. 10. 1946 - Expulsion of Germans from Czechoslovakia, 1950 - creation of the buffer zone between Czechoslovakia and Western Germany and Austria, 1951 - creation of the restricted border area along the Czechoslovakian border with Western Germany and Austria, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

21. 8. 1968 - Invasion of the Warsaw Pact troops

8. 9. – 1. 11. 1944 - The battle of the Dukla Pass, 21. 8. 1968 - Invasion of the Warsaw Pact troops

9.11.1989 - The fall of the Berlin Wall, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

21. 8. 1968 - Invasion of the Warsaw Pact troops, 1979 - 1989 - Sovětská invaze do Afghánistánu, 26 April 1986 - Chernobyl disaster, 2. 3. - 21. 7. 1992 - Konflikt v Podněstří