Source: 24/7 News
(Undated) -- Feel free to start your day off with a cold slice of pizza for breakfast because it's National Pepperoni Pizza Day.
Pizza was invented by Italians, but the idea of adding pepperoni came from Americans after the pies were first introduced in the states in the early 1900s.
Other popular toppings include sausage, mushroom, olive and pineapple.
Or you can go toppings-free, and just have a slice of cheese.
You can celebrate today with some discounts on pizza from Domino's Papa John's, Pizza Hut, Little Caesars and more.