Halloween (or Hallowe'en) is an annual holiday
observed on October 31. It has roots in the Celtic festival of Samhain
and the Christian holiday All Saints' Day, but is today largely a
secular celebration.

Common Halloween activities include trick-or-treating, wearing costumes and attending costume
parties, carving jack-o'-lanterns, ghost tours,
bonfires,
apple bobbing, visiting haunted attractions, committing pranks, telling ghost
stories or other frightening tales, and watching horror
films.