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

22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR, 17.9.1939 - Soviet invasion of Poland , 8. 5. 1945 - End of WWII, Western Ukrainian lands within Poland 1919–1939, 1941-1944 - Nazi occupation of Ukraine and 2 more anniversaries

25. 2. 1948 - Communist coup d‘état in ČSR, 8. 5. 1945 - End of WWII, 30. 5. 1953 – 3. 6. 1953 – The monetary reform and subsequent public upheaval, 1. 9. 1939 - The outbreak of the WW2

1. 9. 1939 - The outbreak of the WW2, 1944 - 1945 - The liberation of Czechoslovakia, 8. 5. 1945 - End of WWII, 23. 2. 1949 – Beginning the forced agricultural collectivisation, 21. 8. 1968 - Invasion of the Warsaw Pact troops

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, 23. 2. 1949 – Beginning the forced agricultural collectivisation, 30. 5. 1953 – 3. 6. 1953 – The monetary reform and subsequent public upheaval and 1 more anniversaries

2.11.1938 - First Vienna Award (Hungarian annexation of Carpathian Ruthenia and South Slovakia), 1944 - 1945 - The liberation of Czechoslovakia, 30. 5. 1945 – 29. 10. 1946 - Expulsion of Germans from Czechoslovakia, 29. 6. 1945 – Withdrawal from the Carpatho-Russia in favour of the USSR, 25. 2. 1948 - Communist coup d‘état in ČSR and 3 more anniversaries

5. 1. - 21. 8. 1968 - The Prague Spring, 1944 - 1945 - The liberation of Czechoslovakia, 23. 2. 1949 – Beginning the forced agricultural collectivisation

23. 2. 1949 – Beginning the forced agricultural collectivisation, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 5. 1. - 21. 8. 1968 - The Prague Spring

23. 2. 1949 – Beginning the forced agricultural collectivisation, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia