National Strawberry Sundae Day is celebrated on July 07, 2021. The strawberry sundae is a sweet ice cream dessert. It typically consists of one or more scoops of ice cream topped with strawberry sauce or syrup, and in some cases a topping with strawberries. According to the Oxford English Dictionary, the origin of the term sundae is obscure; however, it is generally accepted that the spelling "sundae" derives from the word Sunday.
Among the many stories about the invention of the sundae, a frequent theme is that the dish arose in reaction to blue laws prohibiting the sale on Sundays of either ice cream or ice cream soda. The laws are said to have led druggists to produce a Sunday substitute for these popular treats. According to this theory, the spelling was changed to sundae to avoid offending religious sensibilities. (With material from: Wikipedia)