Some ghouls may trick some may treat but the real spooky visitors you will want to look out for are the ones on your doorsteps looking for sweets. But why do we fear ghosts and all things supernatural on this day in particular? Why are there random kids on your doorstep looking for sweets? Surely that should be illegal. The customs of Halloween go back centuries and are so deeply steeped in religion and tradition that nothing about this holiday seems strange to us and is part of our yearly festivities.
Halloween is an annual holiday celebrated each year on October 31 (see: When is Halloween?). It originated with the ancient Celtic festival of Samhain, when people would light bonfires and wear costumes to ward off ghosts. In the eighth century, Pope Gregory III designated November 1 as a time to honor all saints; soon, All Saints Day incorporated some of the traditions of Samhain. The evening before was known as All Hallows Eve, and later Halloween.
Over time, Halloween evolved into a day of activities like trick-or-treating, carving jack-o-lanterns, festive gatherings, donning costumes and eating sweet treats.