Over the centuries, Halloween has evolved from a day with religious origins to a day of the most commercialized celebrations of the year. Year after year, we watch scary movies, put on our most creative costumes, and hand out candy to friends and neighbors. Halloween has been around for thousands of years, and pastimes such as trick or treating have unexpected origins. Also, no other holiday in the world has as many superstitions associated with it, and the supernatural celebration has deep pagan roots and a long history. Halloween is one of the most celebrated holidays.