 On 17 May 1321, the relic of the arm of the patroness saint arrives in Tarragona, from Antioch, located in the Orient.The city carried out an absolutely spectacular and overwhelming welcome reception, in such a way that this would become the point of reference for the subsequent structuration of the festivity.For the first time ever, the population, by means of all of its integrating social classes or strata—political, ecclesiastical, soldiers or military men and working class—fills the streets and takes possession of it.