23. 2. 1949 – Beginning the forced agricultural collectivisation, 5. 1. - 21. 8. 1968 - The Prague Spring, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

29. 9. 1938 - The Munich Diktat, 15. 3. 1939 - The Nazi occupation of ČSR, 1. 9. 1939 - The outbreak of the WW2, 25. 2. 1948 - Communist coup d‘état in ČSR, 13. 8. – 31. 10. 1940 - The Battle of Britain and 2 more anniversaries

Bay of Pigs Invasion, Cuba after 1959, Cuba before 1959, Dictatorship of Fulgencio Batista in Cuba

21. 8. 1968 - Invasion of the Warsaw Pact troops, 1944 - 1945 - The liberation of Czechoslovakia, 5. 1. - 21. 8. 1968 - The Prague Spring

15. 3. 1939 - The Nazi occupation of ČSR, 1948 - 1955 - Politic lawsuit in the Stalin age

1. 1. 1977 - Declaration of Chart 77, 1976 – The Plastic People of the Universe trial

1. 1. 1977 - Declaration of Chart 77