21. 8. 1968 - Invasion of the Warsaw Pact troops, 1. 1. 1977 - Declaration of Chart 77

27. 1. 1945 - The liberation of the concentration camp Auschwitz, 5. 1. - 21. 8. 1968 - The Prague Spring, 21. 8. 1968 - Invasion of the Warsaw Pact troops

23. 2. 1949 – Beginning the forced agricultural collectivisation

25. 2. 1948 - Communist coup d‘état in ČSR, 23. 2. 1949 – Beginning the forced agricultural collectivisation, 14. 3. 1953 – Klement Gottwald’s death, March 5th, 1953 - Death of Josif V. Stalin, 5. 1. - 21. 8. 1968 - The Prague Spring and 5 more anniversaries

5. 1. - 21. 8. 1968 - The Prague Spring, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 1. 1. 1977 - Declaration of Chart 77, 1989 - The fall of the iron curtain, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

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

17. 4. 1969 – A. Dubček’s resignation, start of the “normalisation” period, 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