The spooky rituals of Halloween have their origins in the ancient Celtic harvest festivals of northwestern Europe. Irish immigrants brought the holiday to American shores in the 19th century, where it has been popular ever since.
In the last few decades, Halloween has become an increasingly global affair as children everywhere dress up in costumes and knock on doors for "tricks or treats."
Besides candy as treats, other popular Halloween foods include apple cider, caramel apples and toasted pumpkin seeds. In Ireland, traditional dishes served on or around Halloween include boxty, colcannon and barmbrack, a delicious fruitcake.