Not really-really (pizza with the same ingredients existed before, and it was just renamed as Margherita): https://news.ycombinator.com/item?id=29132535 https:

Not really-really (pizza with the same ingredients existed before, and it was just renamed as Margherita): https://news.ycombinator.com/item?id=29132535 https://news.ycombinator.com/item?id=29132535 What is true is that pizza was common only in the south of Italy, but what made it more common in the north (I would say much later, in the '60's) was the flux of people relocating from the south to the north in those years.