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, 17. 4. 1969 – A. Dubček’s resignation, start of the “normalisation” period, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

21. 8. 1968 - Invasion of the Warsaw Pact troops, 19. – 21. 11. 1968 – The three-day student strike and other displays of civil r, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation

31. 5. – 8. 6. 1950 – Milada Horáková’s trial, 1968 - 1970 - Second renewal of Junák, 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 and 13 more anniversaries

27. 5. 1942 - Assassination of R. Heydrich, 18. 4. - 10. 5. 1945 - osvobození západní části ČSR americkou armádou, 8. 5. 1945 - End of WWII, 26. 5. 1946 – The last “free” parliamentary election in Czechoslovakia, 30. 5. 1953 – 3. 6. 1953 – The monetary reform and subsequent public upheaval and 7 more anniversaries

25. 2. 1948 - Communist coup d‘état in ČSR, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 30. 5. 1953 – 3. 6. 1953 – The monetary reform and subsequent public upheaval, 1944 - 1945 - The liberation of Czechoslovakia, 1948 - 1955 - Politic lawsuit in the Stalin age and 1 more anniversaries

21. 8. 1968 - Invasion of the Warsaw Pact troops, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

19. – 21. 11. 1968 – The three-day student strike and other displays of civil r, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation

1944 - 1945 - The liberation of Czechoslovakia, 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, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation and 1 more anniversaries

21. 8. 1968 - Invasion of the Warsaw Pact troops, 16. 1. 1969 – Jan Palach´s self-immolation , 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 17. 11. 1989 - Demonstration at Národní třída

21. 8. 1968 - Invasion of the Warsaw Pact troops, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 21. – 28.3.1969 – Disorders related to the celebration of Czech hockey team’s, 8. 5. 1945 - End of WWII, May 1, 1962 "student provocation" on Petřín hill