1940 Katyn massacre, 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

5. – 9. 5. 1945 - Prague Uprising

1941 - 1945 - Transports to the concentration camps, 1945 - The liberation of the concentration camps, 14. 3. 1939 – The foundation of the Slovak State, 2.11.1938 - First Vienna Award (Hungarian annexation of Carpathian Ruthenia and South Slovakia), 1948 Arab–Israeli War

1944 - 1945 - The liberation of Czechoslovakia, 18. 4. - 10. 5. 1945 - osvobození západní části ČSR americkou armádou, 25. 2. 1948 - Communist coup d‘état in ČSR, 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, 26 April 1986 - Chernobyl disaster, 1989 - The fall of the iron curtain, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

15. 3. 1939 - The Nazi occupation of ČSR, 1941 - 1945 - Transports to the concentration camps, 1944 - 1945 - The liberation of Czechoslovakia, Death marches 1944-1945, 8. 5. 1945 - End of WWII and 3 more anniversaries

8. 5. 1945 - End of WWII, 25. 2. 1948 - Communist coup d‘état in ČSR, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

Western Ukrainian lands within Poland 1919–1939, Ukrainian insurgent movement 1930–1950, 1941-1944 - Nazi occupation of Ukraine, 1943 - Conflict between Poles and Ukrainians in Eastern Galicia and Volhynia, 23. 4. 1943 - Vypálení Janovy Doliny and 2 more anniversaries

2. 10. 1938 - Poland's annexation of Teschen area, 15. 3. 1939 - The Nazi occupation of ČSR, 1944 - 1945 - The liberation of Czechoslovakia, The liberation of the city of Ostrava, 21. 8. 1968 - Invasion of the Warsaw Pact troops and 2 more anniversaries

1. 9. 1939 - The outbreak of the WW2, 8. 5. 1945 - End of WWII