Halloween, Hallowe’en, or Holloween is a holiday celebrated on the night of October 31. Common Halloween activities include trick-or-treating, ghost tours, bonfires, costume parties, visiting “haunted houses”, carving Jack-o’-lanterns, reading scary stories and watching horror movies. Irish immigrants carried versions of the tradition to North America in the nineteenth century. Other western countries embraced the holiday in the late twentieth century. Halloween is celebrated in several countries of the Western world, most commonly in Ireland (where it originated), the United States, Canada, Puerto Rico, the United Kingdom, New Zealand, and occasionally in parts of Australia.

The modern holiday of Halloween has its origins in the ancient Celtic festival known as Samhain. The festival of Samhain is a celebration of the end of the harvest season in Gaelic culture, and is sometimes regarded as the “Celtic New Year”. Traditionally, the festival was a time used by the ancient pagans to take stock of supplies and slaughter livestock for winter stores. The ancient Gaels believed that on October 31, now known as Halloween, the boundary between the alive and the deceased dissolved, and the dead become dangerous for the living by causing problems such as sickness or damaged crops. The festivals would frequently involve bonfires, where the bones of slaughtered livestock were thrown. Costumes and masks were also worn at the festivals in an attempt to mimic the evil spirits or placate them.

The carved pumpkin, lit by a candle inside, is one of Halloween’s most prominent symbols in America, and is commonly called a jack-o’-lantern. Originating in Europe, these lanterns were first carved from a turnip or rutabaga. Believing that the head was the most powerful part of the body containing the spirit and the knowledge, the Celts used the “head” of the vegetable to frighten off any superstitions. The name jack-o’-lantern can be traced back to the Irish legend of Stingy Jack, a greedy, gambling, hard-drinking old farmer. He tricked the devil into climbing a tree and trapped him by carving a cross into the tree trunk. In revenge, the devil placed a curse on Jack, condemning him to forever wander the earth at night with the only light he had: a candle inside of a hollowed turnip. The carving of pumpkins is associated with Halloween in North America, where pumpkins were readily available and much larger, making them easier to carve than turnips. Many families that celebrate Halloween carve a pumpkin into a frightening or comical face and place it on their home’s doorstep after dark. In America the tradition of carving pumpkins is known to have preceded the Great Famine period of Irish immigration. The carved pumpkin was originally associated with harvest time in general in America and did not become specifically associated with Halloween until the mid-to-late 19th century.