17. 4. 1969 – A. Dubček’s resignation, start of the “normalisation” period, 1. 1. 1977 - Declaration of Chart 77, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 17. 11. 1989 - Demonstration at Národní třída

21. 8. 1968 - Invasion of the Warsaw Pact troops, 1. 1. 1977 - Declaration of Chart 77, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 31. 10. 1967 – Spontaneous student demonstration in Prague, 19. – 21. 11. 1968 – The three-day student strike and other displays of civil r and 1 more anniversaries

1. 1. 1977 - Declaration of Chart 77

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

1. 1. 1977 - Declaration of Chart 77, 21. 8. 1988 – 17. 11. 1989 – Street demonstrations against the communist regime, 18 December 2011 Václav Havel died

18. - 21. 8. 1969 – mass demonstrations against Soviet occupation, 1. 1. 1977 - Declaration of Chart 77, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

29. 9. 1938 - The Munich Diktat, 1. 9. 1939 - The outbreak of the WW2, 1940 - The Battle of France, 1944 - 1945 - The liberation of Czechoslovakia, 5. 10. 1944 – 9 5 1945 – the siege of Dunkirk and 3 more anniversaries

21. 8. 1968 - Invasion of the Warsaw Pact troops, 16. 1. 1969 – Jan Palach´s self-immolation , 25. 1. 1969 Jan Palach´s funeral, 17. 4. 1969 – A. Dubček’s resignation, start of the “normalisation” period, 1976 – The Plastic People of the Universe trial and 3 more anniversaries

21. 8. 1968 - Invasion of the Warsaw Pact troops, 16. 1. 1969 – Jan Palach´s self-immolation

1. 1. 1977 - Declaration of Chart 77, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia