The first pizzeria in the USA, Lombardi’s opened in Manhattan in 1905 and several people who worked there moved on and opened their own place, well before the war, presumong you mean WWII. And all my mother, grandmothers and aunts ever cooked with was olive oil and sometimes butter, or the two together. As I said earlier, guess it depends on where you lived and who you were. To those of you who say gravy instead of sauce, gravy is described as a type of sauce made from the drippings of cooked or cooking meat to which a thickening agent such as flour, corn starch or a roux and is usually brown. Did your mother or grandmothers add either to what you had for Sunday dinner? But call it what you want, just make it, make it taste good and let me know when it’s ready. 😎