A fun fall activity, carving Jack-o’-lanterns actually has its roots in a sinister, tragic fable. Celtic folklore tells the tale of a drunken farmer named Jack who tricked the devil, but his trickery resulted in him being turned away from both the gates of heaven and hell after he died. Having no choice but to wander around the darkness of purgatory, Jack made a lantern from a turnip and a burning lump of coal that the devil had tossed him from hell.

Jack, the story goes, used the lantern to guide his lost soul; as such, the Celts believed that placing Jack-o’-lanterns outside would help guide lost spirits home when they wander the streets on Halloween. Originally made using a hollowed-out turnip with a small candle inside, Jack-o’-lanterns’ frightening carved faces also served to scare evil spirits away.

When the Irish potato famine of 1846 forced Irish families to flee to North America, the tradition came with them. Since turnips were hard to come by in the states at the time, pumpkins were used as a substitute.