Today We Celebrate National Pizza Day Coming just two days after the Super Bowl, today is National Pizza Day! Today is a special day to celebrate all things pizza, which is a food that's pretty magical for simply being a baked flatbread topped with tomato sauce and cheese and baked in an oven. If you didn't know, pizza was invented in Naples, Italy in the 10th century. In 1905, America's first pizzeria was opened in New York, named Lombardi's. Since then, dozens of chain stores have emerged. Of course you have your nationwide pizza restaurants like Pizza Hut, Domino's, Papa John's, and L...