Deep-dish pizza has variations that reach far beyond Chicago. We spoke to an expert to round up eight different styles of deep-dish pizzas.

The invention of deep dish pizza is generally credited to Ike Sewell, the original owner of Pizzeria Uno — and a Texan, strangely enough — in 1943.

Chicago is famous for its deep dish pizza, and there’s no better day to grab a slice than Saturday. That’s because Saturday, April 5, is National Deep Dish Pizza Day. The invention of d… ...