National Blueberry Popsicle Day is celebrated on September 2 every year, primarily in the USA. This unofficial holiday encourages people to indulge in blueberry popsicles, a frozen treat made by freezing fruit juice or flavored liquids around a stick. The term "popsicle" originated from a brand that became popular in the U.S. and Canada, with other names including freeze pop and ice lolly. To celebrate, individuals are encouraged to make their own blueberry-flavored popsicles at home, using a simple recipe that combines Greek yogurt, milk, and frozen blueberries. The day highlights the enjoyment of this refreshing dessert, which has been around since 1923.