1936 - 1938 - Great Terror in the USSR, 1989 - The fall of the iron curtain, 2022 - full scale invasion of Russia into Ukraine

7. 11. 1917 - October Revolution in Russia, Deportations to the Far East, Siberia and North Kazachstan 1939–1941 and 1944–1950, 8 January 1941 - 27 January 1944 Siege of Leningrad, 8. 5. 1945 - End of WWII, 21. 8. 1968 - Invasion of the Warsaw Pact troops

23 February 1944 - Deportation of Chechens and Ingushs to Centrall Asia Soviet Republics, 5 January 1957 - Reestablishment of Chechen-Ingush Autonomous Soviet Socialist Republic, Chechen return from deportation, 1994 - 1996 - First Chechen war, 1999 - 2009 - Second Chechen war

1936 - 1938 - Great Terror in the USSR, 1948 - 1955 - Politic lawsuit in the Stalin age, 21. 8. 1968 - Invasion of the Warsaw Pact troops

1.-3.9.2004 Teroristický útok v Beslanu

1932 - 1933 - Holodomor - Great famine in Ukraine, 26 April 1986 - Chernobyl disaster

31. 5. – 8. 6. 1950 – Milada Horáková’s trial, 1968 - 1970 - Second renewal of Junák, 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 and 13 more anniversaries