Pizza Day made its way into the stomachs and hearts of pizza lovers in Italy in the 10th century.
Fun fact: Italian Queen Margarita of Savoy, visited Naples on a royal visit in 1889. Two chefs presented her with a pizza resembling the colours of the Italian flag, red (tomato), white (mozzarella and green (basil). They coined it, Pizza Margherita. That sure explains why the margarita is the queen of all pizzas.