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 (Niger) the "Fête de l'Arbre". Independence Day is celebrated in Niger with official festivals and appearances of political leaders, an official broadcast by the President as well as the tradition (since 1975) that every Nigerien plant a tree. It is a public holiday, in which government offices and many businesses close. Independence Day (Niger) Independence Day in the Republic of Niger is commemorated on August 3, marking the nation's independence from France in 1960. Since 1975, it is also Arbor Day, as trees are planted across the nation to aid the fight against desertification. The date of the formal, complete independence