All Saints Day in Spain (Todos Los Santos) takes place on November 1st. It is a very important national public holiday when people from all over the country visit cemeteries to lay flowers on the graves of deceased relatives. Back in the 10th century All Saints’ Day was celebrated on May 13th but Popes Gregory III and IV moved it to its present date because they wanted to neutralise the pagan festival, the forerunner of Halloween, that was held at that time of the year.