Romper Day at the Allentown Fairgrounds in 1961. Celebrated to mark the end of the school summer vacation, the first Romper Day was held on August 28th, 1914, presided over by General Harry C. Trexler. The celebration got its name from the garments worn by the female participants, who wore loose, one-piece garments called “rompers.” The rompers were often decorated with the colors of the girls’ local playground. During the event, children participate in track events such as sprints and relay races as well as dance exercises and traditional activities like the Maypole Dance and Weave, and the Flag Drill. The name “Romper Day” was retired in 1992 and was officially replaced with the title “Allentown Playground Celebration Day”.