The Modernization of Halloween The All Souls' Day begging and cake giving, along with the tradition of leaving food on one's doorstep to appease spirits, evolved into trick-or-treating.Halloween became modernized throughout the 19th century, as colonial Americans made it a holiday about getting together to enjoy parties, food and fun costumes. By the dawn of the 20th century, Halloween was hardly about religion anymore and was widely celebrated as a purely recreational holiday.