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

17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

1945 - 1947 Expulsion of Germans from former German East territories, 1945 - 1946 Resettlement of Poles in the "Regained lands" , 8. 5. 1945 - End of WWII, 30. 5. 1953 – 3. 6. 1953 – The monetary reform and subsequent public upheaval

1944 - 1945 - The liberation of Czechoslovakia, 20. 6. - 29. 8. 1944 - Operation Bagration

Perestroika, Dissolution of the Soviet Union

Perestroika, Dissolution of the Soviet Union

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

September 1939- occupation of the entire Upper Silesia by Germany, March 1945 - the occupation of Upper Silesia by the Soviet army

30. 5. 1945 – 29. 10. 1946 - Expulsion of Germans from Czechoslovakia, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 1989 - The fall of the iron curtain, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia