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

20. 7. 1936 - 1. 9. 1939 - civil war in Spain, 8. 5. 1945 - End of WWII, 21. 8. 1968 - Invasion of the Warsaw Pact troops

29. 9. 1938 - The Munich Diktat, 15. 3. 1939 - The Nazi occupation of ČSR, 1941-1944 - Nazi occupation of Ukraine, 25. 2. 1948 - Communist coup d‘état in ČSR, 21. 8. 1968 - Invasion of the Warsaw Pact troops

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

Western Ukrainian lands within Poland 1919–1939, Ukrainian insurgent movement 1930–1950, 17.9.1939 - Soviet invasion of Poland , 13. 7. 1943 - Destroying of Český Malín, 10. 7. 1946 – Agreement on Volhynian Czechs option with the USSR and 3 more anniversaries

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

29. 8. 1944 - April 1945 - The Slovak National Uprising, March 5th, 1953 - Death of Josif V. Stalin, 5. 1. - 21. 8. 1968 - The Prague Spring, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 17. 4. 1969 – A. Dubček’s resignation, start of the “normalisation” period and 1 more anniversaries

5. 1. - 21. 8. 1968 - The Prague Spring, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 16. 1. 1969 – Jan Palach´s self-immolation , 25. 1. 1969 Jan Palach´s funeral, 21. 8. 1988 – 17. 11. 1989 – Street demonstrations against the communist regime and 5 more anniversaries

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, 17. 11. 1989 - Demonstration at Národní třída, 29. 6. 1989 – Zveřejnění manifestu Několik vět and 1 more anniversaries

30. 5. 1945 – 29. 10. 1946 - Expulsion of Germans from Czechoslovakia, 8. 5. 1945 - End of WWII, Likvidace starého Mostu, 21. 8. 1968 - Invasion of the Warsaw Pact troops

21. 8. 1968 - Invasion of the Warsaw Pact troops, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia