April 5 is National Deep Dish Pizza Day!
The holiday is not to be confused with regular pizza day - that was in February.
So grab a fork and a slice of Chicago style as we take a look at a brief history of pizza:
Pizza originated in Naples in the late 18th century as a simple flatbread snack with various toppings. It was sold by Neapolitan street vendors and informal restaurants as a cheap source of food in a crowded city.
Over the years, pizza became a popular dish in Italy, and eventually the dish made its way over to the United States in the late 1800s. In 1943, two entrepreneurs in Chicago from Pizzeria Uno wanted to put an American spin on the Italian classic. Thus, they created the Chicago style pizza, with toppings served inside a thick crust underneath a layer of sauce.
Never had thick pizza before? Want to know what it tastes like? BuzzFeed has you covered: