Dissident

21. 8. 1968 - Invasion of the Warsaw Pact troops, 5. 7. 1985 Pilgrimage to Velehrad, 5. 1. - 21. 8. 1968 - The Prague Spring, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 26.8. 1980 Solidarity strike in Wroclaw

17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 21. 8. 1988 – 17. 11. 1989 – Street demonstrations against the communist regime, 29. 6. 1989 – Zveřejnění manifestu Několik vět

1962 - Cuban Missile Crisis

1. 1. 1977 - Declaration of Chart 77