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

9. - 10. 11. 1938 Crystal Night, 25. 2. 1948 - Communist coup d‘état in ČSR, 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 and 4 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

21 September 1937 - Funeral of President Masaryk, july 1938 - X. sokol slet's, 29. 9. 1938 - The Munich Diktat, 1. 9. 1939 - The outbreak of the WW2, 1941 - 1945 - Transports to the concentration camps and 11 more anniversaries

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

5. 1. - 21. 8. 1968 - The Prague Spring, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 21. – 28.3.1969 – Disorders related to the celebration of Czech hockey team’s, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 21. 8. 1988 – 17. 11. 1989 – Street demonstrations against the communist regime and 2 more anniversaries

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, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

7. 11. 1917 - October Revolution in Russia, 25. 2. 1948 - Communist coup d‘état in ČSR, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation

16. 1. 1969 – Jan Palach´s self-immolation , 25. 1. 1969 Jan Palach´s funeral, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

25. 2. 1948 - Communist coup d‘état in ČSR, 23. 2. 1949 – Beginning the forced agricultural collectivisation, 22. 8. 1963 – Start of court restitutions, 16. 1. 1969 – Jan Palach´s self-immolation , 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation

5. 1. - 21. 8. 1968 - The Prague Spring, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 25. 1. 1969 Jan Palach´s funeral, 17. 4. 1969 – A. Dubček’s resignation, start of the “normalisation” period, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation and 1 more anniversaries