Halloween is an annual holiday celebrated on October 31. It has roots in the Celtic festival of Samhain and the Christian holy day of All Saints. Today, it is largely a secular celebration.
The day is often associated with the colors black and orange, and is strongly associated with symbols like the jack-o-lantern. Halloween activities include trick-or-treating, wearing costumes and attending costume parties, ghost tours, bonfires, visiting haunted attractions, pranks, telling scary stories, and watching horror films.