A couple of years ago a food discussion erupted in Italy. A provocation: "The best Parmesan cheese comes from Wisconsin"
Long story short: Italian migrants kept doing the original recipe
Why Wisconsin? Because it's the land of the cheese. It makes over 600 different varieties
So it's not only Parmesan. They have also Asiago, Fontina, Gorgonzola, Provolone, Mozzarella, Ricotta, Stracchino... all of this, from Wisconsin!