21. 8. 1968 - Invasion of the Warsaw Pact troops, 15. 3. 1939 - The Nazi occupation of ČSR, 1944 - 1945 - The liberation of Czechoslovakia, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

2.11.1938 - First Vienna Award (Hungarian annexation of Carpathian Ruthenia and South Slovakia), 1944-1945 Hungary at the end of the second world war , 1944 - 1945 - The liberation of Czechoslovakia, 1948 - 1955 - Politic lawsuit in the Stalin age, 21. 8. 1968 - Invasion of the Warsaw Pact troops

27. 5. 1942 - Assassination of R. Heydrich, 1948 - 1955 - Politic lawsuit in the Stalin age, 25. 2. 1948 - Communist coup d‘état in ČSR, 9. 5. 1962 – An extensive amnesty, 21. 8. 1968 - Invasion of the Warsaw Pact troops and 1 more anniversaries

1944 - 1945 - The liberation 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

25. 2. 1948 - Communist coup d‘état in ČSR, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 29. 6. 1989 – Zveřejnění manifestu Několik vět, 20. 11. – 3. 12. 1952 – Rudolf Slánský’s trial

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

21. 8. 1968 - Invasion of the Warsaw Pact troops, 1. 1. 1977 - Declaration of Chart 77

1968 - 1970 - Second renewal of Junák, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 6.-13. 12. 1980 Operation Krkonoše, 1989 - Third renewal of Junák, 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, 17. 11. 1939 – Closure of Czech universities, 12. 3. 1938 - "Anschluss" of Austria

8. 5. 1945 - End of WWII, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia