This page lists historical and other events on August 15th in Catalonia and the Catalan-speaking countries as well as a list of births and deaths of well-known Catalans.
1250 - Xàtiva, Kingdom of València: King Jaume I concedes the privilege of organising a trade fair to the town.
1285 - Girona: Combat de Santa Maria, an episode in the Crusade against the Crown of Aragon at the gates of the city. The Catalano-Aragonese troops flee in the face of the French attack.
1304 - The Almogàvers commanded by Roger de Flor beat a very superior Turkish force at the Battle of Kibistra (also known as the Battle of the Mountains of Taure) to the cry of Deperta Ferro! or Iron Awake!
1901 - Alaró, Mallorca: electric light arrives to the island for the first time.
1842 - València: Josep Aguirre Matiol, Valencian poet (died 1920).
1879 - Sabadell: Josep Masllovet i Sanmiquel, Catalan musician and composer (died 1946).
1920 - València: Vicente Aguilera Cerni, Valencian art critic and essayist (died 2005).
1971 - Viena (Àustria): Joan Prat i Esteve, known as Armand Obiols, Catalan writer, journalist and literary critic (born 1904).
1983 - Sabadell (Vallès Occidental): Miquel Crusafont i Pairó, Catalan paleontologist (born 1910).
1997 - París (France): Roc Llop i Convalia, Catalan trades unionist and writer (born 1908).
2011 - Barcelona: Joaquim Maluquer i Sostres, Catalan sociologist and ornithologist, Creu de Sant Jordi in 1996 (born 1930).
2015 - Beniarbeig, Alacant: Rafael Chirbes, Valencia writer, who wrote in Spanish, and literary critic (born 1949).
August 15th is the Saints Day of La Mare de Déu d'Agost also known as L'Assumpció or Ascension of Mary, which as it is summer, is an excuse for Festa Majors around Catalonia and the Catalan-speaking countries.