Willie Boy
BOO!!! Mwahahahaha!!!!!
I did a Google. You're right. Pizza isn't American, but neither is it Chinese. It is, indeed, Italian. Deep-dish pizza is American. It was invented in Chicago.
http://www.pizzafacts.net/pizza-history/pizza-timeline/
Marco Polo originally brought pizza back from China during one of his trade runs. The Italians then updated it, then we Americans updated their updates. But pizza still originated in China. Pizza as we know it is claimed for Italy, just like Chicago Deep Dish pizza is claimed for America.

