29. 9. 1938 - The Munich Diktat, 14. 3. 1939 – The foundation of the Slovak State, 1. 9. 1939 - The outbreak of the WW2, 1944 - 1945 - The liberation of Czechoslovakia, 8. 5. 1945 - End of WWII and 10 more anniversaries

21. 8. 1968 - Invasion of the Warsaw Pact troops, 16. 12. 1989 - 24-25. 12. 1989 - The Romanian revolution

8. 9. – 1. 11. 1944 - The battle of the Dukla Pass, 1944 - 1945 - The liberation of Czechoslovakia

30. 5. 1945 – 29. 10. 1946 - Expulsion of Germans from Czechoslovakia

26.8. 1980 Solidarity strike in Wroclaw , 26 April 1986 - Chernobyl disaster

1944 - 1945 - The liberation of Czechoslovakia, 25. 2. 1948 - Communist coup d‘état in ČSR

15. 3. 1939 - The Nazi occupation of ČSR, 1. 9. 1939 - The outbreak of the WW2, 1941 - 1945 - Transports to the concentration camps, 1948 Arab–Israeli War, 9. - 10. 11. 1938 Crystal Night

29. 9. 1938 - The Munich Diktat, 5. 1. - 21. 8. 1968 - The Prague Spring, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 1944 - 1945 - The liberation of Czechoslovakia, 30. 5. 1945 – 29. 10. 1946 - Expulsion of Germans from Czechoslovakia and 2 more anniversaries

21. 8. 1968 - Invasion of the Warsaw Pact troops, 23. 2. 1949 – Beginning the forced agricultural collectivisation

National Reorganization Process