National Grape Popsicle Day is observed in the USA on May 27 every year, celebrating one of America's favorite frozen treats. The day honors the grape-flavored popsicle, which is considered a quintessential summer delight. The origin of popsicles dates back to 1905 when 11-year-old Frank Epperson accidentally created the first frozen treat by leaving a mixture of flavored white powder and soda outside on a cold night. This inspired him to develop fruit-flavored popsicles, which he later showcased at a fireman's ball in 1922. Epperson patented his creation in 1924, originally calling it an "epsicle" before renaming it to "popsicle." Today, grape popsicles are celebrated for their royal purple color and are widely available in stores, making them a fitting centerpiece for the day's festivities.