21. 8. 1968 - Invasion of the Warsaw Pact troops, 5. 1. - 21. 8. 1968 - The Prague Spring, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

21. 8. 1968 - Invasion of the Warsaw Pact troops, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 31. 12. 1992 Dissolution of Czechoslovakia

5. 1. - 21. 8. 1968 - The Prague Spring, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 1989 - The fall of the iron curtain, 1944 - 1945 - The liberation of Czechoslovakia, 13. – 14. 4. 1950 – "Action K" – forceful concentration of Czech monks and 1 more anniversaries

21. 8. 1968 - Invasion of the Warsaw Pact troops, 1944 - 1945 - The liberation of Czechoslovakia, 27. 5. 1942 - Assassination of R. Heydrich

21. 8. 1968 - Invasion of the Warsaw Pact troops, 1962 - Cuban Missile Crisis, 30. 5. 1953 – 3. 6. 1953 – The monetary reform and subsequent public upheaval

25. 2. 1948 - Communist coup d‘état in ČSR, 23. 2. 1949 – Beginning the forced agricultural collectivisation, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 25. 1. 1969 Jan Palach´s funeral, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

21. 8. 1968 - Invasion of the Warsaw Pact troops, 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

1968 - 1970 - Second renewal of Junák, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 1945 - 1948 - First renewal of Junák, 1989 - Third renewal of Junák

23. 2. 1949 – Beginning the forced agricultural collectivisation, 5. 1. - 21. 8. 1968 - The Prague Spring, 1989 - The fall of the iron curtain