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

Ukraine in 1990-s., The Revolution of Dignity (21.11. 2013 – 22.02. 2014), 2014 - first invasion of Russia into Ukraine, 2022 - full scale invasion of Russia into Ukraine

2022 - full scale invasion of Russia into Ukraine

2022 - full scale invasion of Russia into Ukraine, Dissolution of the Soviet Union, The Ukrainian declaration of independence in 1991

Ukraine in 1990-s., Perestroika, 26 April 1986 - Chernobyl disaster, The Revival of Ukrainian national culture 1989 - 1991, The Orange Revolution of 2004 and 2 more anniversaries