5 Fun Facts About Pizza by GeoBeats. Pizza originated as a simple piece of flatbread, garnished with whatever kinds of food were readily available to the Mediterranean people. This made pizza a quick and convenient meal for families or workers who didn't have time for a full meal, much the same as today! The first pizzerias were in Naples, Italy, from where the meal spread to the rest of Europe and then around the world. Today you can find thousands of toppings from vegetables to chocolate on pizzas. The day of the most pizza sales in the United States is Super Bowl Sunday, followed by New Year's Eve.