21. 8. 1968 - Invasion of the Warsaw Pact troops, 1989 - The fall of the iron curtain

25. 2. 1948 - Communist coup d‘état in ČSR, 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 , 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

21. 8. 1968 - Invasion of the Warsaw Pact troops, 25. 2. 1948 - Communist coup d‘état in ČSR, 7. 11. 1917 - October Revolution in Russia, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 1945 - Arrests of Russian émigrés by the agents of SMERSH

Perestroika, First Nagorno-Karabakh War

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. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

Armenian Genocide, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

20. 12. 1944 - 25. 4. 1945 Bombing of Pilsen, 1948 - 1955 - Politic lawsuit in the Stalin age, 25. 2. 1948 - Communist coup d‘état in ČSR, 9. 5. 1960 - Amnesty of political prisoners, National Reorganization Process and 1 more anniversaries

5. 1. - 21. 8. 1968 - The Prague Spring, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 21. – 28.3.1969 – Disorders related to the celebration of Czech hockey team’s, 17. 4. 1969 – A. Dubček’s resignation, start of the “normalisation” period, 18. - 21. 8. 1969 – mass demonstrations against Soviet occupation and 4 more anniversaries

1989 - The fall of the iron curtain, 30. 5. 1945 – 29. 10. 1946 - Expulsion of Germans from Czechoslovakia, 18. 4. - 10. 5. 1945 - osvobození západní části ČSR americkou armádou, 1950 - creation of the buffer zone between Czechoslovakia and Western Germany and Austria, 1951 - creation of the restricted border area along the Czechoslovakian border with Western Germany and Austria