A jack-o'-lantern Also called All Hallows Eve All Saints' Eve Samhain Hallowed End Observed by United Kingdom, United States, Ireland, Canada, sometimes Australia and New Zealand and many Latin American countries where it is known as Noche de las Brujas (Night of the Witches)[1] Type Religious, Cultural (celebrated mostly irrespective of religion) Significance There are many sources of Halloween's significance Date October 31 Celebrations Trick-or-treating, Bobbing for apples, Costume parties, Carving jack-o'-lanterns, Bonfires and Fireworks (in Ireland) Look up Halloween in Wiktionary, the free dictionary. Halloween, or Hallowe'en, is a holiday celebrated on the night of October 31. Traditional activities include trick-or-treating, bonfires, costume parties, visiting "haunted houses" and carving jack-o-lanterns. The term Halloween (and its alternative rendering Hallowe'en) is shortened from All-hallow-even, as it is the eve of "All Hallows' Day",[1] which is now also known as All Saints' Day. Irish and Scottish 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 now celebrated in several parts of the Western world, most commonly in Ireland, the United States, Canada, Puerto Rico, and the United Kingdom and occasionally in parts of Australia and New Zealand.