Geography of Halloween Geography of Halloween Halloween, a contraction of "All Hallows' Eve", is a celebration observed on 31 October, the day before the feast of All Hallows'. The celebrations and observances of this day occur primarily in regions of the Western world, although some traditions vary significantly between geographical areas. Halloween, also spelled as Hallowe'en or Allhallowe'en, is a contraction of All Hallows' Eve, the eve or vigil before the Western Christian feast of All Hallows (or All Saints) which is observed on 1 November. This day begins the triduum of Hallowtide, which culminates with All Souls' Day. In the Middle Ages,
All Saints' Day Holy Ones". All Saints' Day All Saints' Day, also known as All Hallows' Day, Hallowmas, the Feast of All Saints, or Solemnity of All Saints, is a Christian festival celebrated in honour of all the saints, known and unknown. In Western Christianity, it is celebrated on 1 November by the Roman Catholic Church, the Anglican Communion, the Methodist Church, the Lutheran Church, the Reformed Church, and other Protestant churches. The Eastern Orthodox Church and associated Eastern Catholic Churches and Byzantine Lutheran Churches celebrate it on the first Sunday after Pentecost. Oriental Orthodox churches of Chaldea and associated Eastern Catholic churches