In its early incarnation, the humble pizza was topped off with locally sourced herbs and smothered with olive oil, the basic ingredients of Italy's southern regions.
See also: Fascinating photos of street food around the world
Funnily enough, Pizza Hut has never opened a restaurant in Italy. Perhaps through fear of competition?
But in terms of the country with the greatest number of pizza gobblers, Brazil tops the list, with Rio de Janeiro joining Sao Paulo as the pizza-eating centers of the world.
When the royal couple first tasted Esposito's pizza, on 10 July 1889, the day became known as Pizza Day.
Pizza is one of the world's most popular dishes, a fast food favorite but also a fine example of gastronomic genius and creativity. But did you know that the origins of pizza date back 5,000 years, and that it's not an Italian culinary creation?
Sink your teeth into these little-known facts about pizza.
30 appetizing facts about pizza
The humble pizza is one of the most popular foods on the planet
FOOD Pizza
Pizza is one of the world's most popular dishes, a fast food favorite but also a fine example of gastronomic genius and creativity. But did you know that the origins of pizza date back 5,000 years, and that it's not an Italian culinary creation?
Sink your teeth into these little-known facts about pizza.