Specification :

The term hoagie originated in the Philadelphia area. Domenic Vitiello, professor of Urban Studies at the University of Pennsylvania asserts that Italians working at the World War I era shipyard in Philadelphia, known as Hog Island where emergency shipping was produced for the war effort, introduced the sandwich, by putting various meats, cheeses, and lettuce between two slices of bread. This became known as the " Hog Island" sandwich; hence, the " hoagie"