This page lists historical and other events on June 23rd in Catalonia and the Catalan-speaking countries as well as festivals and a list of births and deaths of well-known Catalans.
1854 - Barcelona: First concert of the Orfeó Barcelonès, the first orfeó in Spain, takes place at the Teatre Odeon.
1931 - Barcelona: The first issue of the satirical weekly "El Be Negre" is published.
1987 - Reus: The society of the Tramvia Econòmic from Reus to Salou is created.
1736 - Esparreguera, Bishopric of Barcelona: Jaume Pasqual, doctor in canonic and civil law, abbot and prior of the Monastery of Bellpuig de les Avellanes and historian known particularly for «Monumenta Cathaloniae».
1765 - Alpens, Osona: Agustí Canelles i Carreres, Catalan astronomer and mathematician (died 1818).
1860 - Barcelona: Joan Llimona i Bruguera, Catalan painter (died 1926).
1992 - Barcelona: Lluís Casassas i Simó, Catalan geographer.
2005 - Barcelona: Pere Garcia i Plensa, Catalan film buff.
2005 - Sabadell: Joan Alsina i Giralt, Sabadell historian (born 1913).
La Revetlla de Sant Joan - Sant Joan's Eve