Poland

5. 1. - 21. 8. 1968 - The Prague Spring, 21. 8. 1968 - Invasion of the Warsaw Pact troops

2. 10. 1938 - Poland's annexation of Teschen area, September 1939- occupation of the entire Upper Silesia by Germany, March 1945 - the occupation of Upper Silesia by the Soviet army, 8. 5. 1945 - End of WWII

Vznik nezávislého odborové hnutí Solidarita, Výjimečný stav v Polsku

1. 9. 1939 - The outbreak of the WW2

1945 - 1947 Expulsion of Germans from former German East territories, 8. 5. 1945 - End of WWII

1. 9. 1939 - The outbreak of the WW2, 17.9.1939 - Soviet invasion of Poland , 8. 5. 1945 - End of WWII, 30. 5. 1953 – 3. 6. 1953 – The monetary reform and subsequent public upheaval, 21. 8. 1968 - Invasion of the Warsaw Pact troops and 1 more anniversaries

1. 9. 1939 - The outbreak of the WW2

Western Ukrainian lands within Poland 1919–1939

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