The National Day of Catalonia (Catalan: Diada Nacional de Catalunya) is a day-long festival in Catalonia and one of its official national symbols, celebrated annually on 11 September. It commemorates the fall of Barcelona during the War of the Spanish Succession in 1714 and the subsequent loss of Catalan institutions and laws.
The National Day of Catalonia – La Seu D’Urgell, Pyrenees, Spain, Catalonia, September 11, 2018
photo: all-andorra.com
See also Catalan travel guide