The first place to sell pizza in America was NYC's Lombardi’s in 1905.

Patsy Lancieri (of NYC's Patsy's Pizzeria) first sold pizza by the slice in 1933. Previously, it was only sold by the pie.

The Chicago deep dish pizza was created in 1943 by the restaurant that later became the Pizzeria Uno chain.

The average pizzeria uses roughly 55 pizza boxes per day.

The first frozen pizza came out in 1962.

Approximately 3 billion pizzas are sold in the United States each year.

Pepperoni is the most popular topping in the U.S.

Every person in the United States eats an average of 23 pounds of pizza every year.

94% of Americans reportedly eat pizza regularly.

Worldwide, about 3 billion pizzas are sold every year. That's a lotta pizza!