Frozen Yogurt was invented in the United States in the 1970s as a healthier alternative to ice cream. It became trendy in the 1980s and is now trendy again in the 2000s. Frozen yogurt is an American favorite that’s good all year long. It’s never too cold for the sweet treat! Frozen Yogurt Day celebrates this delicious treat. Many frozen yogurt stores give away free or discounted frozen yogurt on or around this day, so look up shops near you to figure out when they offer the sales.