May 5 is National Hoagie Day. “Hoagie” is the Philadelphia term for the big sandwich that is also known as a sub, hero or grinder. The origin of the name of the big, long sandwich may be from a restaurant advertisement in Wilmington, Delaware, in 1940. But, the submarine sandwich has long ago left its origins behind. But just so you don’t forget the story of this venerated American classic, here are 10 mouthwatering facts about hoagies.
