8. 5. 1945 - End of WWII, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 1. 1. 1977 - Declaration of Chart 77, 1989 - The fall of the iron curtain

14. 2. 1945 - Bombing of Prague , 21. 8. 1968 - Invasion of the Warsaw Pact troops, 25. 2. 1948 - Communist coup d‘état in ČSR, 8. 5. 1945 - End of WWII, 15. 3. 1939 - The Nazi occupation of ČSR and 6 more anniversaries

1. 9. 1939 - The outbreak of the WW2, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 26.8.-11.9.1972 - Summer Games of the XX Olympiad , Munich , 1989 - The fall of the iron curtain, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia and 1 more anniversaries

1944 - 1945 - The liberation of Czechoslovakia, 1945 - The liberation of the concentration camps, 21. 8. 1968 - Invasion of the Warsaw Pact troops

17.9.1939 - Soviet invasion of Poland , 1941 - 1945 - Transports to the concentration camps, 1944 - 1945 - The liberation of Czechoslovakia, 1945 - The liberation of the concentration camps, 10. 7. 1946 – Agreement on Volhynian Czechs option with the USSR and 8 more anniversaries

1948 - 1955 - Politic lawsuit in the Stalin age, 25. 2. 1948 - Communist coup d‘état in ČSR, 20. 11. – 3. 12. 1952 – Rudolf Slánský’s trial, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 1989 - The fall of the iron curtain

8. 5. 1945 - End of WWII, 21. 8. 1968 - Invasion of the Warsaw Pact troops

8. 5. 1945 - End of WWII, 21. 8. 1968 - Invasion of the Warsaw Pact troops

29. 9. 1938 - The Munich Diktat, 15. 3. 1939 - The Nazi occupation of ČSR, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 1989 - The fall of the iron curtain, 1945 - The liberation of the concentration camps and 3 more anniversaries

25. 2. 1948 - Communist coup d‘état in ČSR, 23. 2. 1949 – Beginning the forced agricultural collectivisation, 5. 1. - 21. 8. 1968 - The Prague Spring, 19. – 21. 11. 1968 – The three-day student strike and other displays of civil r, 21. 8. 1968 - Invasion of the Warsaw Pact troops and 3 more anniversaries