And the tradition was re-popularized by the Peanuts.
When the war was over and sugar rationing ended, children were able to go trick-or-treating once again. However, since the conflict had gone on for years, many young ones had never been out on Halloween and weren’t familiar with the concept.
According to Business Insider, The Adventures of Ozzie and Harriet and the Peanuts comic strip “helped to re-popularize the tradition of dressing up in costumes and asking for candy from door-to-door.”