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, 21. – 28.3.1969 – Disorders related to the celebration of Czech hockey team’s, 17. 4. 1969 – A. Dubček’s resignation, start of the “normalisation” period and 6 more anniversaries

25. 2. 1948 - Communist coup d‘état in ČSR, 5. 1. - 21. 8. 1968 - The Prague Spring, 5. 4. 1968 – Formation of KAN (Club of Active Non-partisans), 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

27. 5. 1942 - Assassination of R. Heydrich, 1944 - 1945 - The liberation of Czechoslovakia, 1948 - 1955 - Politic lawsuit in the Stalin age, 25. 2. 1948 - Communist coup d‘état in ČSR, 28. 1. 1977 - The “Anti-Charter”

15. 3. 1939 - The Nazi occupation of ČSR, 25. 2. 1948 - Communist coup d‘état in ČSR, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 1944 - 1945 - The liberation of Czechoslovakia and 4 more anniversaries

25. 2. 1948 - Communist coup d‘état in ČSR, 1941 - 1945 - Transports to the concentration camps, 1. 1. 1977 - Declaration of Chart 77, 1976 – The Plastic People of the Universe trial, 18 December 2011 Václav Havel died

1948 - 1955 - Politic lawsuit in the Stalin age, 5. 1. - 21. 8. 1968 - The Prague Spring, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 16. 1. 1969 – Jan Palach´s self-immolation , 1. 1. 1977 - Declaration of Chart 77 and 1 more anniversaries

26.8. 1980 Solidarity strike in Wroclaw , Výjimečný stav v Polsku

21. 8. 1968 - Invasion of the Warsaw Pact troops, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 1968 - 1970 - Second renewal of Junák, 1. 1. 1977 - Declaration of Chart 77

14. 3. 1939 – The foundation of the Slovak State, 1. 9. 1939 - The outbreak of the WW2, 1944 - 1945 - The liberation of Czechoslovakia, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 21. – 28.3.1969 – Disorders related to the celebration of Czech hockey team’s and 1 more anniversaries

20. 11. – 3. 12. 1952 – Rudolf Slánský’s trial, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 1. 1. 1977 - Declaration of Chart 77, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia