We have been celebrating Halloween every October 31 for over a thousand years already. Its origins can be traced to the ancient Celtic pagans and their Samhain festival. During the ceremony, people would light bonfires, make offerings, and wear animal and monster costumes for protection. During the 8th century, Pope Gregory III declared November 1 as All Saints Day, a day for Catholics to honor all saints yearly. The night before was referred to as “All Hallows Eve,” which later became Halloween.
While Halloween started as a religious holiday, it has evolved into a secular or nonreligious event. Now, people celebrate Halloween with fun costumes, trick-or-treating activities, jack-o-lanterns, gathering with family and friends, and eating treats.