Halloween (or Hallowe'en), a contraction of All-Hallows-Even ("evening"), is an annual holiday observed on October 31, which commonly includes activities such as trick-or-treating, attending costume parties, carving jack-o'-lanterns, bonfires, apple bobbing, visiting haunted attractions, playing pranks, telling scary stories, and watching horror films.
Origin of name
The word Halloween is first attested in the 16th century and represents a Scottish variant of the fuller All-Hallows-Even ("evening"), that is, the night before All Hallows Day. Although the phrase All Hallows is found in Old English (ealra hālgena mæssedæg, mass-day of all saints), All-Hallows-Even is itself not attested until 1556
Halloween
Also called All Hallows' Eve, All Saints' Eve, Samhain
Observed by Around the world
Date October 31
Celebrations Parades, Festivals
Observances Costume parties, trick-or-treating, carving pumpkins, ghost tours, haunted attractions, bonfires, divination, apple bobbing, fireworks displays
Related to Samhain, All Saints' Day (cf. vigils)
http://en.wikipedia.org/wiki/Halloween

