Hallowe'en(/ˌhæləˈwiːn, -oʊˈiːn, ˌhɑːl-/; a contraction of "All Hallows' Evening"), also known as Allhalloween, All Hallows' Eve, or All Saints' Eve, is a yearly celebration observed in a number of countries on 31 October, the eve of the Western Christian feast of All Hallows' Day. It initiates the triduum of Allhallowtide, the time in the liturgical year dedicated to remembering the dead, including saints (hallows), martyrs, and all the faithful departed believers.
The traditional focus of All Hallows' Eve revolves around the theme of using "humor and ridicule to confront the power of death."
According to many scholars, All Hallows' Eve is a Christianized feast initially influenced by Celtic harvest festivals, with possible paganroots. Because many Western Christian denominations encourage abstinence from meat on All Hallows' Eve, the tradition of eating certain vegetarian foods for this vigil day developed, including the consumption of apples, colcannon, cider, potato pancakes, and soul cakes.
Many Christians acknowledged "a belief that once a year, on Hallowe'en, the dead of the churchyards rose for one wild, hideous carnival," known as the danse macabre. The danse macabre urged them not to forget the end of all earthly things."