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

5. 4. 1968 – Formation of KAN (Club of Active Non-partisans), 21. 8. 1968 - Invasion of the Warsaw Pact troops, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 1989 - The fall of the iron curtain, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

21. 8. 1968 - Invasion of the Warsaw Pact troops, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 21. 8. 1988 – 17. 11. 1989 – Street demonstrations against the communist regime, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 17. 11. 1989 - Demonstration at Národní třída

5. 1. - 21. 8. 1968 - The Prague Spring, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 22. 8. 1968 – Extraordinary congress (the “Vysočany Congress”) of KSČ, 21. – 28.3.1969 – Disorders related to the celebration of Czech hockey team’s, 16. 1. 1969 – Jan Palach´s self-immolation and 3 more anniversaries

8. 5. 1945 - End of WWII, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 23. 2. 1949 – Beginning the forced agricultural collectivisation

21. 8. 1968 - Invasion of the Warsaw Pact troops, 17. 4. 1969 – A. Dubček’s resignation, start of the “normalisation” period, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 31. 12. 1992 Dissolution of Czechoslovakia, 17. 11. 1939 – Closure of Czech universities and 20 more anniversaries

21. 8. 1968 - Invasion of the Warsaw Pact troops, 23. 10. 1956 - Hungarian revolution of 1956 and fightings for independence, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 1948 - 1955 - Politic lawsuit in the Stalin age, 5. 1. - 21. 8. 1968 - The Prague Spring and 1 more anniversaries

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, 17. 4. 1969 – A. Dubček’s resignation, start of the “normalisation” period, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation and 2 more anniversaries

21. 8. 1968 - Invasion of the Warsaw Pact troops, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 21. – 28.3.1969 – Disorders related to the celebration of Czech hockey team’s, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 19. – 21. 11. 1968 – The three-day student strike and other displays of civil r

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

25. 2. 1948 - Communist coup d‘état in ČSR, 8. 5. 1945 - End of WWII, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 30. 5. 1953 – 3. 6. 1953 – The monetary reform and subsequent public upheaval, 15. 3. 1939 - The Nazi occupation of ČSR and 5 more anniversaries