National Day of Catalonia

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National Day of Catalonia (Catalan: Diada Nacional de Catalunya)
Floral offerings at the monument to Rafael Casanova on Barcelona's Ronda de Sant Pere, 2005. Casanova was one of the Catalan commanders during the Siege of Barcelona.
Official name	Diada Nacional de Catalunya
Also called	Diada, Onze de Setembre
Observed by	Catalonia (Spain)
Type	National day
Significance	Commemorates the last stand of the defense of Barcelona during the War of the Spanish Succession in 1714.
Celebrations	Flag hoisting, floral offerings, singing patriotic songs and Els Segadors, speeches, demonstrations, entertainment and cultural programs
Date	11 September
Frequency	annual

The National Day of Catalonia^[1] (Catalan: Diada Nacional de Catalunya [diˈaðə nəsi.uˈnal də kətəˈluɲə]), also known as the Diada, is a day-long festival in Catalonia and one of its official national symbols, celebrated annually on 11 September. It is one of the public holidays in Catalonia.

It commemorates the end of the siege of Barcelona during the War of the Spanish Succession in 1714 and the subsequent loss of Catalan institutions and laws.^[2]