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 Day (Belarus) Independence Day. Since 1991, the Independence Day was celebrated on July 27, the day of the Declaration of Sovereignty of Belarus. August 25, 1991, after the August events in Moscow, the Byelorussian SSR gave the Declaration of Sovereignty of the Republic the constitutional status of the law. On September 19, 1991, the Permanent Representative of the Byelorussian SSR Hienadz Buraukin informed the office of the Secretary General of the United Nations that it would officially be designated to simply known as "Belarus". On December 10, 1991 the Supreme Soviet of Belarus ratified the Belavezha Accords which formally declared the dissolution