National Independence Day (Poland) Marshal Józef Piłsudski assumed control of Poland. It was a day of military ceremony since 1920. The holiday was constituted in 1937 and was celebrated only twice before World War II. After the war, the communist authorities of the People's Republic removed Independence Day from the calendar, though reclamation of independence continued to be celebrated informally on 11 November. The holiday was officially replaced by the National Day of Poland's Revival as Poland's National Day, celebrated on 22 July anniversary of the communist PKWN Manifesto under Joseph Stalin. In particular, during the 1980s, in many cities, including Warsaw, informal marches
Independence and Unity Day (Slovenia) 1990 referendum, which was supported by all political parties represented in the Assembly of the Socialist Republic of Slovenia at the time. Independence and Unity Day is not to be confused with Slovenia's Statehood Day, which is celebrated each year on June 25, in honour of the declaration of Slovenian independence from Yugoslavia in 1991. Independence and Unity Day (Slovenia) Independence and Unity Day () is a Slovenian national holiday that occurs on every 26 December to commemorate the official proclamation of the Slovenian independence referendum on 26 December 1990. The referendum took place on 23 December that year. In