1. 9. 1939 - The outbreak of the WW2

1989 - The fall of the iron curtain

21. 8. 1968 - Invasion of the Warsaw Pact troops, 16. 12. 1989 - 24-25. 12. 1989 - The Romanian revolution

1944-1945 Hungary at the end of the second world war , 25 December 1944 - 13 February 1945 Siege of Budapest, 30. 5. 1953 – 3. 6. 1953 – The monetary reform and subsequent public upheaval, 21. 8. 1968 - Invasion of the Warsaw Pact troops

30. 5. 1945 – 29. 10. 1946 - Expulsion of Germans from Czechoslovakia

Western Ukrainian lands within Poland 1919–1939

26.8. 1980 Solidarity strike in Wroclaw , 26 April 1986 - Chernobyl disaster

National Reorganization Process

Western Ukrainian lands within Poland 1919–1939, 17.9.1939 - Soviet invasion of Poland , 1941-1944 - Nazi occupation of Ukraine, 22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR, 1943 - Conflict between Poles and Ukrainians in Eastern Galicia and Volhynia and 1 more anniversaries