31. 10. 1967 – Spontaneous student demonstration in Prague

29. 9. 1938 - The Munich Diktat, 8. 5. 1945 - End of WWII, 30. 5. 1953 – 3. 6. 1953 – The monetary reform and subsequent public upheaval, 31. 10. 1967 – Spontaneous student demonstration in Prague, 5. 1. - 21. 8. 1968 - The Prague Spring and 2 more anniversaries

25. 2. 1948 - Communist coup d‘état in ČSR, 31. 10. 1967 – Spontaneous student demonstration in Prague, 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 and 3 more anniversaries