One of my favorite foods is pizza. Pizza as we know it was invented in Naples, Italy and it has become popular worldwide.
I'm eating pizza right now!  I had no idea which part of Italy it was from.
Lucky You! The name pizza was actually found in a manuscript in Southern Italy dating from the 10th century. That's an ancient lunch you're having!
I thought I had heard before that the modern style of pizza was developed in the United States, and that the Italian version is a lot different.
It depends which type of pizza you mean. New York style pizza is more neapolitan in design, whereas e.g. deep dish Chicago pizza is not at all similar.
I don't even consider Chicago style as pizza.  That's more of a tomato cake.  You can't even hold a slice without making a mess.
I agree, but there are also many variations on the Chicago style, the deep dish being the best known. It can also be stuffed.