This page lists historical and other events on May 18th in Catalonia and the Catalan-speaking countries as well as festivals and a list of births and deaths of well-known Catalans.
1869 - Pact of Tortosa: The republicano-federal representatives of Aragon, Catalonia, València and Balearic Islands, territories of the former Crown of Aragon, coordinate in favour of a Spanish republican state.
1983 - First autonomous elections in the País Valencià and Balearic Islands.
1731 - Sogorb, l'Alt Palància: José Camarón Boronat, Valencian painter, engraver and illustrator.
1904 - Barcelona, Barcelonès: Àngels Ferrer i Sensat, Catalan teacher.
1909 - Cambo-les Bains, Aquitània (France): Isaac Albéniz, Catalan composer and pianist.