21. 8. 1968 - Invasion of the Warsaw Pact troops, Palach Week, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 17. 11. 1989 - Demonstration at Národní třída, 18 December 2011 Václav Havel died

Likvidace starého Mostu, 21. 8. 1968 - Invasion of the Warsaw Pact troops, 21. – 28.3.1969 – Disorders related to the celebration of Czech hockey team’s, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

14. 3. 1939 – The foundation of the Slovak State, 1944 - 1945 - The liberation of Czechoslovakia, 29. 8. 1944 - April 1945 - The Slovak National Uprising, 8. 5. 1945 - End of WWII, 25. 2. 1948 - Communist coup d‘état in ČSR and 2 more anniversaries

29. 9. 1938 - The Munich Diktat, 1944 - 1945 - The liberation of Czechoslovakia, 30. 5. 1945 – 29. 10. 1946 - Expulsion of Germans from Czechoslovakia, 19. 6. – 23. 6. 1948 – The Sokol Gathering, 5. 1. - 21. 8. 1968 - The Prague Spring and 3 more anniversaries

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

21. 8. 1968 - Invasion of the Warsaw Pact troops, 5. – 9. 5. 1945 - Prague Uprising

Perestroika, Dissolution of the Soviet Union, The Annexation of Crimea (February 2014), 2022 - full scale invasion of Russia into Ukraine

Ukraine in 1990-s., The Orange Revolution of 2004, The Revolution of Dignity (21.11. 2013 – 22.02. 2014), The Annexation of Crimea (February 2014), 2014 - first invasion of Russia into Ukraine and 1 more anniversaries

Ukraine in 1990-s., Organization of Ukrainian nationalists (1929 - 1950 рр.), Ukrainian Insurgent Army (1942 – 1954), The Khrushchev Thaw 1953 – 1964, March 5th, 1953 - Death of Josif V. Stalin and 8 more anniversaries

Ukrainian student discontent (1980 - 1990), Perestroika, 26 April 1986 - Chernobyl disaster, The 1991 referendum in Ukraine, The Revolution of Dignity (21.11. 2013 – 22.02. 2014) and 6 more anniversaries