21. 8. 1968 - Invasion of the Warsaw Pact troops, 22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR, 17.9.1939 - Soviet invasion of Poland , Western Ukrainian lands within Poland 1919–1939, Ukrainian insurgent movement 1930–1950 and 3 more anniversaries

Black Spring of Cuba 2003, Cuba after 1959

25. 1. 1969 Jan Palach´s funeral, 21. 8. 1988 – 17. 11. 1989 – Street demonstrations against the communist regime, 5. 1. - 21. 8. 1968 - The Prague Spring, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia, 16. 1. 1969 – Jan Palach´s self-immolation

Perestroika, Dissolution of the Soviet Union

23. 2. 1949 – Beginning the forced agricultural collectivisation, 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 , 26 April 1986 - Chernobyl disaster and 3 more anniversaries

Perestroika, 21. 8. 1988 – 17. 11. 1989 – Street demonstrations against the communist regime, 1989 - The fall of the iron curtain, 17. 11. 1989 - Demonstration at Národní třída, 2022 - full scale invasion of Russia into Ukraine

1. 9. 1939 - The outbreak of the WW2

09.09.1944 - The coup d'état of the Motherland Front and the communists coming to power, 23.12.1947 - Mass Nationalization of industrial and other property in Bulgaria, 1948 - 1955 - Politic lawsuit in the Stalin age, 10.11.1989 - The Transition from communism to democracy in Bulgaria

1945 - 1947 Expulsion of Germans from former German East territories, 8. 5. 1945 - End of WWII