chocolate. History Ancient precursors Traditions similar to the modern custom of trick-or-treating extend all the way back to classical antiquity, although it is extremely unlikely that any of them are directly related to the modern custom. The ancient Greek writer Athenaeus of Naucratis records in his book The Deipnosophists that, in ancient times, the Greek island of Rhodes had a custom in which children would go from door-to-door dressed as swallows, singing a song, which demanded the owners of the house to give them food and threatened to cause mischief if the owners of the house refused. This tradition was claimed to have been started by the Rhodian lawgiver Cleobulus. Souling Since the Middle Ages, a tradition of mumming on a certain holiday has existed in parts of Britain and Ireland. It involved going door-to-door in costume, performing short scenes or parts of plays in exchange for food or drink. The custom of trick-or-treating on Halloween may come from the belief that supernatural beings, or the souls of the dead, roamed the earth at this time and needed to be appeased. It may otherwise have originated in a Celtic festival, Samhain, held on 31 October–1 November, to mark the beginning of winter, in Ireland, Scotland and the Isle of Man, and Calan Gaeaf in Wales, Cornwall, and Brittany. The festival is believed to have pre-Christian roots. In the 9th century, the Catholic Church made 1 November All Saints' Day. Among Celtic-speaking peoples, it was seen as a liminal time, when the spirits or fairies (the Aos Sí), and the souls of the dead, came into our world and were appeased with offerings of food and drink. Similar beliefs and customs were found in other parts of Europe. It is suggested that trick-or-treating evolved from a tradition whereby people impersonated the spirits, or the souls of the dead, and received offerings on their behalf. S. V. Peddle suggests they "personify the old spirits of the winter, who demanded reward in exchange for good fortune". Impersonating these spirits or souls was also believed to protect oneself from them. Starting as far back as the 15th century, among Christians, there had been a custom of sharing soul-cakes at Allhallowtide (October 31 through November 2). People would visit houses and take soul-cakes, either as representatives of the dead, or in return for praying for their souls. Later, people went "from parish to parish at