Around the world, pizza has been eaten since the Stone Age. Men/women would bake flat bread, sometimes as food, sometimes as a plate. After a while, they started to put toppings on it.
Where originated: Naples, Italy
What the word means: Pie
What is it: An open pie spread with tomato sauce, cheese, and other toppings.

Top Ten Toppings

10. Onions

9. Green peppers

8. Shrimp

7. Ham

6. Bacon

5. Mushrooms

4. Pineapple

3. Sausage

2. Cheese

1. Pepperoni

Thin crust is more popular than deep dish.
Every day,Americans eat 100 acres of pizza. That is 350 pizzas eaten every second.