17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

8. 5. 1945 - End of WWII, 25. 2. 1948 - Communist coup d‘état in ČSR, 21. 8. 1968 - Invasion of the Warsaw Pact troops

1. 9. 1939 - The outbreak of the WW2, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 21. 6. 1949 – Execution of General Heliodor Píka, 8. 5. 1945 - End of WWII

14. 3. 1939 – The foundation of the Slovak State, 8. 5. 1945 - End of WWII

5. – 9. 5. 1945 - Prague Uprising, 8. 9. – 1. 11. 1944 - The battle of the Dukla Pass, 1944 - 1945 - The liberation of Czechoslovakia, 22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR, 23. 2. 1949 – Beginning the forced agricultural collectivisation and 4 more anniversaries

21. 8. 1968 - Invasion of the Warsaw Pact troops, 8. 5. 1945 - End of WWII, 1944 - 1945 - The liberation of Czechoslovakia, 23. 2. 1949 – Beginning the forced agricultural collectivisation, 2.11.1938 - First Vienna Award (Hungarian annexation of Carpathian Ruthenia and South Slovakia) and 2 more anniversaries

15. 3. 1939 - The Nazi occupation of ČSR, 1941 - 1945 - Transports to the concentration camps, 1945 - The liberation of the concentration camps, 25. 2. 1948 - Communist coup d‘état in ČSR

15. 3. 1939 - The Nazi occupation of ČSR, 1944 - 1945 - The liberation of Czechoslovakia, 5. – 9. 5. 1945 - Prague Uprising, 8. 5. 1945 - End of WWII

21. 8. 1968 - Invasion of the Warsaw Pact troops, 30. 5. 1953 – 3. 6. 1953 – The monetary reform and subsequent public upheaval, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation

Ukrainian youth organizations in Poland 1920-1939, Ukrainian insurgent movement 1930–1950, Deportations to the Far East, Siberia and North Kazachstan 1939–1941 and 1944–1950, 1941-1944 - Nazi occupation of Ukraine, 22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR and 5 more anniversaries