21. 8. 1968 - Invasion of the Warsaw Pact troops, 31. 5. – 8. 6. 1950 – Milada Horáková’s trial, 1. 1. 1977 - Declaration of Chart 77, 28. 1. 1977 - The “Anti-Charter”

21. 8. 1968 - Invasion of the Warsaw Pact troops, 1. 1. 1977 - Declaration of Chart 77, 28. 1. 1977 - The “Anti-Charter”, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

5. 1. - 21. 8. 1968 - The Prague Spring, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 1. 1. 1977 - Declaration of Chart 77

17. 4. 1969 – A. Dubček’s resignation, start of the “normalisation” period, 23. 2. 1949 – Beginning the forced agricultural collectivisation, 1976 – The Plastic People of the Universe trial, 1. 1. 1977 - Declaration of Chart 77

21. 8. 1968 - Invasion of the Warsaw Pact troops, 21. 8. 1988 – 17. 11. 1989 – Street demonstrations against the communist regime, 1. 1. 1977 - Declaration of Chart 77, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 29. 6. 1989 – Zveřejnění manifestu Několik vět and 1 more anniversaries

17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 1. 1. 1977 - Declaration of Chart 77, 17. 11. 1989 - Demonstration at Národní třída

15. 3. 1939 - The Nazi occupation of ČSR, 1948 - 1955 - Politic lawsuit in the Stalin age, 25. 2. 1948 - Communist coup d‘état in ČSR, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 16. 1. 1969 – Jan Palach´s self-immolation and 8 more anniversaries

26 April 1986 - Chernobyl disaster, Dissolution of the Soviet Union, The Repressions of the totalitarian regime in the 1970s in Ukraine, The Revival of Ukrainian national culture 1989 - 1991, 5. – 9. 5. 1945 - Prague Uprising and 1 more anniversaries

21. 8. 1968 - Invasion of the Warsaw Pact troops, 1. 1. 1977 - Declaration of Chart 77

26.8.-11.9.1972 - Summer Games of the XX Olympiad , Munich