Halloween originated from the ancient Celtic festival of Samhain where the Celts believed ghosts returned to Earth. They wore costumes and masks to scare away ghosts. Modern Halloween results from a mix of Native American and European autumn traditions involving storytelling, dancing, parties, games, art and foods of the season. Common Halloween activities include carving pumpkins, decorating with cobwebs and skeletons, telling scary stories by a bonfire, visiting haunted houses, bobbing for apples, and children dressing up and going trick-or-treating from house to house to receive treats.