22. 8. 1968 – Extraordinary congress (the “Vysočany Congress”) of KSČ

25. 2. 1948 - Communist coup d‘état in ČSR, 5. 1. - 21. 8. 1968 - The Prague Spring, 22. 8. 1968 – Extraordinary congress (the “Vysočany Congress”) of KSČ

22. 8. 1968 – Extraordinary congress (the “Vysočany Congress”) of KSČ, 5. 1. - 21. 8. 1968 - The Prague Spring, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

1944 - 1945 - The liberation of Czechoslovakia, 8. 5. 1945 - End of WWII, 1948 - 1955 - Politic lawsuit in the Stalin age, 20. 11. – 3. 12. 1952 – Rudolf Slánský’s trial, 21. 8. 1968 - Invasion of the Warsaw Pact troops and 4 more anniversaries

13. – 14. 4. 1950 – "Action K" – forceful concentration of Czech monks, 22. 8. 1968 – Extraordinary congress (the “Vysočany Congress”) of KSČ

29. 9. 1938 - The Munich Diktat, 1944 - 1945 - The liberation of Czechoslovakia, 30. 5. 1945 – 29. 10. 1946 - Withdrawal of Germans from Czechoslovakia, 19. 6. – 23. 6. 1948 – The Sokol Gathering, 5. 1. - 21. 8. 1968 - The Prague Spring and 3 more anniversaries