1) The word "pizza" comes from the Latin root word, "picea", which means, "blackening of crust by fire".
2) The first known pizzeria, Antica Pizzeria, opened in Naples, Italy in 1738.
3) The first pizzeria in the United States was opened by Genaro Lombardi in 1895 in the borough of Manhattan's Little Italy section of New York. It is still operating at 32 Spring Street.
4) Pizzerias represent 17% of all US restaurants.
5) Over 5 billion pizzas are sold world-wide each year.