Halloween comes from All Hallows Eve, or the evening before All Saints Day on November 1 followed by All Souls Day on November 2 and traditional commemorations of the dead. Mexico holds large public festivals to celebrate the Day of the Innocents and the Day of the Dead. In the UK hollowing out vegetables may have pagan origins and apple-bobbing is thought to remind people of the medieval dunking used to determine if a woman were a witch or not. What would you do if you met a witch?