21. 8. 1968 - Invasion of the Warsaw Pact troops, 16. 12. 1989 - 24-25. 12. 1989 - The Romanian revolution

29. 9. 1938 - The Munich Diktat, 1. 9. 1939 - The outbreak of the WW2, 5. 10. 1944 – 9 5 1945 – the siege of Dunkirk

28.10.194 - 23.4.1941 Greek- Italian war, 6.4. - 23.4.1941 Battle of Greece, 1944 - 1949 Greek civil war, 21. 8. 1968 - Invasion of the Warsaw Pact troops

23. 2. 1949 – Beginning the forced agricultural collectivisation, 31. 10. 1967 – Spontaneous student demonstration in Prague, 19. – 21. 11. 1968 – The three-day student strike and other displays of civil r

5. 1. - 21. 8. 1968 - The Prague Spring, 21. 8. 1968 - Invasion of the Warsaw Pact troops

21. 8. 1968 - Invasion of the Warsaw Pact troops, 12 November 1989 - Canonization of Agnes of Bohemia

5. 1. - 21. 8. 1968 - The Prague Spring, 17. 11. - 29. 12. 1989 - The Velvet Revolution in Czechoslovakia

1. 9. 1939 - The outbreak of the WW2, 21. 10 - 10. 12. 1941 - The Tobruk campaign

29. 8. 1944 - April 1945 - The Slovak National Uprising, 1989 - The fall of the iron curtain