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

29. 9. 1938 - The Munich Diktat, 1944 - 1945 - The liberation of Czechoslovakia, 25. 2. 1948 - Communist coup d‘état in ČSR, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 1989 - The fall of the iron curtain

1940 - The Battle of France

23. 2. 1949 – Beginning the forced agricultural collectivisation, 5. 1. - 21. 8. 1968 - The Prague Spring, 8. 5. 1945 - End of WWII, 21. 8. 1968 - Invasion of the Warsaw Pact troops

21. 8. 1968 - Invasion of the Warsaw Pact troops, 17. 4. 1969 – A. Dubček’s resignation, start of the “normalisation” period, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 1. 1. 1977 - Declaration of Chart 77, Výjimečný stav v Polsku and 2 more anniversaries

25. 2. 1948 - Communist coup d‘état in ČSR

29. 9. 1938 - The Munich Diktat, 18. 4. - 10. 5. 1945 - osvobození západní části ČSR americkou armádou, 30. 5. 1945 – 29. 10. 1946 - Expulsion of Germans from Czechoslovakia, 25. 2. 1948 - Communist coup d‘état in ČSR, 21. 8. 1968 - Invasion of the Warsaw Pact troops and 1 more anniversaries

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

Ukraine in 1990-s., The Ukrainian declaration of independence in 1991, The Annexation of Crimea (February 2014), 2014 - first invasion of Russia into Ukraine, 2022 - full scale invasion of Russia into Ukraine

1932 - 1933 - Holodomor - Great famine in Ukraine, 26 April 1986 - Chernobyl disaster