Pizza is sold in virtually every country of the world and is one of the most popular foods in the world. Even in countries with no history of eating Western food, pizza is an instant hit. North Korea is a good example of this phenomenon. In 2009, the first pizzeria opened in Pyongyang and it was an immediate runaway success.

There are a wide variety of pizzas available throughout the world. The USA is the best example of a country in which pizza was introduced in several parts of the country at the same time by immigrants from different parts of the world. The most famous of the regional varieties available in America is the New York pizza.

The word pizza evolved from a mispronunciation of the word pita or picta. Pita was a kind of flat bread that has been popular in the Middle East and the Mediterranean area for thousands of years. The word pizza first appeared in 997AD in a document that was found in the town of Gaeta in Southern Italy.