October 9th is a public holiday in the Valencian Community of Spain, known as the Día de la Comunidad Valenciana (Valencian Community Day). It commemorates the day in 1238 when King James I of Aragon (Jaume I) officially liberated the city of Valencia from Moorish rule, incorporating it into the Kingdom of Aragon.

This day is celebrated with various cultural events, parades, and festivals in the region, honouring both the historical and cultural identity of the Valencian people. It’s a “red day” because it’s an official public holiday.