How Trick or Treat Became a Tradition on Halloween

Trick-or-treating has long been a memorable part of childhood for kids around the world. Here's how the beloved tradition began. The earliest form of trick-or-treating came during the Middle Ages. By the 9th Century, the term had changed for All Souls' Day when poor people sang for the rich in exchange for pastries. This Celtic festival had villagers wearing animals skins to ward off spirits. Irish immigrants helped popularize dressing up in costumes during the mid-19th Century.