April 9: Day of the Finnish Language
April 9 in Georgia: Day of National Unity (1989) and restoration of independence in 1991
1998 April 10: Good Friday Agreement, Northern Ireland peace process
2010 April 10: Smolensk Catasprophe
April 14: Rememberance day of Al-Anfal genocide campaign against Kurdistan
1946 April 17: Evacuation Day, Syria
April 18: Yom Ha’atzmaut, Israel Independence Day
1980 April 18: Independence Day of Zimbabwe
April 19, 1940: Indian Day in Brazil
303 April 23: Catalonia: Sant Jordi’s Day
1915 April 24: Armenian Genocide Remembrance Day
1916 April 24: Proclamation of the Irish Republic commences the Easter Rising
1974 April 25: Carnation Revolution in Portugal
1937 April 26: Bombing of Guernica, Basque Country
1961 April 27: Sierra Leone Independence Day
1994 April 27: Freedom Day in South Africa, first post-apartheid elections