The national, ethnic or religious minorities in Poland

21. 8. 1968 - Invasion of the Warsaw Pact troops

Lviv in the times of the Second World War 1939-1945, 1940 - 1941 - Deportations of Poles to USSR

5. 1. - 21. 8. 1968 - The Prague Spring, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 3.10.1990 - Reunification of Germany

1989 - The fall of the iron curtain, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 9.11.1989 - The fall of the Berlin Wall

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

15. 3. 1939 - The Nazi occupation of ČSR, 30. 5. 1945 – 29. 10. 1946 - Withdrawal of Germans from Czechoslovakia, 8. 5. 1945 - End of WWII, 25. 2. 1948 - Communist coup d‘état in ČSR, 23. 2. 1949 – Beginning the forced agricultural collectivisation and 2 more anniversaries

Western Ukrainian lands within Poland 1919–1939, 15. 3. 1939 - The Nazi occupation of ČSR, 1. 9. 1939 - The outbreak of the WW2, 17.9.1939 - Soviet invasion of Poland , 22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR and 5 more anniversaries

1945 - 1947 Expulsion of Germans from former German East territories, Výjimečný stav v Polsku

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

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, 23. 2. 1949 – Beginning the forced agricultural collectivisation