story Learn more at whatscookingamerica.net official sandwich of Philadelphia hoagie probably comes from Hog Island po'boy Hoagie Origin Theories original po' boy What's Cooking America: History of Hoagies hoagies Italians subs original po' boy sandwich via Philadelphia subs hoagie What's Cooking America! Italians Hoagie Origin Theories hoagie probably comes from Hog Island "hoagie" What's Cooking America: La historia de los bocadillos What's Cooking America: History of Hoagies