1. 1. 1977 - Declaration of Chart 77

5. 1. - 21. 8. 1968 - The Prague Spring, 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

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

5. – 9. 5. 1945 - Prague Uprising, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 1. 1. 1977 - Declaration of Chart 77, 1948 - 1955 - Politic lawsuit in the Stalin age and 2 more anniversaries

21. 8. 1968 - Invasion of the Warsaw Pact troops, 8. 5. 1945 - End of WWII, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 1948 - 1955 - Politic lawsuit in the Stalin age, 5. – 9. 5. 1945 - Prague Uprising and 2 more anniversaries

1989 - The fall of the iron curtain, 1. 1. 1977 - Declaration of Chart 77, 29. 6. 1989 – Zveřejnění manifestu Několik vět

1945 - The liberation of the concentration camps, 1. 1. 1977 - Declaration of Chart 77

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

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

17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 1. 1. 1977 - Declaration of Chart 77, 17. 11. 1989 - Demonstration at Národní třída, 19. – 21. 11. 1968 – The three-day student strike and other displays of civil r

1968 - 1970 - Second renewal of Junák, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 25. 2. 1948 - Communist coup d‘état in ČSR, 21. 8. 1988 – 17. 11. 1989 – Street demonstrations against the communist regime, 1. 1. 1977 - Declaration of Chart 77 and 1 more anniversaries