18. - 21. 8. 1969 – mass demonstrations against Soviet occupation

21. 8. 1968 - Invasion of the Warsaw Pact troops, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation

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

21. 8. 1968 - Invasion of the Warsaw Pact troops, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 1990 - 1991 - Odsun sovětských vojsk z Československa

5. – 9. 5. 1945 - Prague Uprising, 5. 1. - 21. 8. 1968 - The Prague Spring, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 21. 8. 1968 - Invasion of the Warsaw Pact troops and 1 more anniversaries

21. 8. 1968 - Invasion of the Warsaw Pact troops, 1. 1. 1977 - Declaration of Chart 77, 1948 - 1955 - Politic lawsuit in the Stalin age, 30. 5. 1953 – 3. 6. 1953 – The monetary reform and subsequent public upheaval, 5. 4. 1968 – Formation of KAN (Club of Active Non-partisans) and 3 more anniversaries

18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 21. 8. 1968 - Invasion of the Warsaw Pact troops

8. 5. 1945 - End of WWII, 5. 1. - 21. 8. 1968 - The Prague Spring, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 1. 1. 1977 - Declaration of Chart 77 and 3 more anniversaries

1944 - 1945 - The liberation of Czechoslovakia, 8. 5. 1945 - End of WWII, Death marches 1944-1945, 25. 2. 1948 - Communist coup d‘état in ČSR, 23. 2. 1949 – Beginning the forced agricultural collectivisation and 2 more anniversaries

21. 10 - 10. 12. 1941 - The Tobruk campaign, 5. 10. 1944 – 9 5 1945 – the siege of Dunkirk, 18. 4. - 10. 5. 1945 - osvobození západní části ČSR americkou armádou, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 21. – 28.3.1969 – Disorders related to the celebration of Czech hockey team’s and 2 more anniversaries

21. 8. 1968 - Invasion of the Warsaw Pact troops, 17. 4. 1969 – A. Dubček’s resignation, start of the “normalisation” period, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia