29. 9. 1938 - The Munich Diktat, 1. 9. 1939 - The outbreak of the WW2, 30. 5. 1945 – 29. 10. 1946 - Expulsion of Germans from Czechoslovakia

8. 9. – 1. 11. 1944 - The battle of the Dukla Pass, 1944 - 1945 - The liberation of Czechoslovakia, 22. 6. 1941 – Operation Barbarossa - Nazi attack on the USSR, 23. 2. 1949 – Beginning the forced agricultural collectivisation, 17.9.1939 - Soviet invasion of Poland and 2 more anniversaries

1944 - 1945 - The liberation of Czechoslovakia, 30. 5. 1945 – 29. 10. 1946 - Expulsion of Germans from Czechoslovakia

25.3.1988 Candle demonstration in Bratislava

Perestroika, Dissolution of the Soviet Union, 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

Perestroika, Ukraine in 1986–1991, Dissolution of the Soviet Union, The Revolution of Dignity (21.11. 2013 – 22.02. 2014), The Annexation of Crimea (February 2014) and 2 more anniversaries

Ukraine in 1990-s., 23. 10. 1956 - Hungarian revolution of 1956 and fightings for independence, 5. 1. - 21. 8. 1968 - The Prague Spring, 21. 8. 1968 - Invasion of the Warsaw Pact troops, Ukraine in 1986–1991 and 2 more anniversaries

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

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

Ukraine in 1990-s., Perestroika, Ukraine in 1986–1991, The Ukrainian declaration of independence in 1991, Dissolution of the Soviet Union and 3 more anniversaries