26 April 1986 - Chernobyl disaster

29. 9. 1938 - The Munich Diktat, 9. - 10. 11. 1938 Crystal Night, 15. 3. 1939 - The Nazi occupation of ČSR, 25. 2. 1948 - Communist coup d‘état in ČSR, 21. 8. 1968 - Invasion of the Warsaw Pact troops and 7 more anniversaries

1940 - 1941 - Deportations of Poles to USSR , 1944 - 1947 - Population Transfers from the Ukrainian - Polish Borderlands, 1945 - 1946 Resettlement of Poles in the "Regained lands" , 8. 5. 1945 - End of WWII

1932 - 1933 - Holodomor - Great famine in Ukraine, 1936 - 1938 - Great Terror in the USSR, 1941-1944 - Nazi occupation of Ukraine, 22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR, 8. 5. 1945 - End of WWII and 3 more anniversaries

1945 - 1947 Expulsion of Germans from former German East territories, 1945 - 1946 Resettlement of Poles in the "Regained lands" , 1944 - 1947 - Population Transfers from the Ukrainian - Polish Borderlands

1989 - Transition in Hungary, 18 December 2011 Václav Havel died

8. 5. 1945 - End of WWII, 1948 - 1955 - Politic lawsuit in the Stalin age, 25. 2. 1948 - Communist coup d‘état in ČSR, 23. 2. 1949 – Beginning the forced agricultural collectivisation, 21. 8. 1968 - Invasion of the Warsaw Pact troops and 1 more anniversaries

29. 9. 1938 - The Munich Diktat, 1941 - 1945 - Transports to the concentration camps, 1944 - 1945 - The liberation of Czechoslovakia, 30. 5. 1945 – 29. 10. 1946 - Expulsion of Germans from Czechoslovakia

30. 5. 1945 – 29. 10. 1946 - Expulsion of Germans from Czechoslovakia, 8. 5. 1945 - End of WWII

8. 5. 1945 - End of WWII, 30. 5. 1945 – 29. 10. 1946 - Expulsion of Germans from Czechoslovakia