Post 1550 as part of the Columbian interchange, the Old World owes these to the New: tomato, maize/corn, squash, peppers, chili pepper, cocoa, potato, sweet potato, avocado, vanilla, tobacco.[0] It would seem that although most staples and dishes are hundreds-thousands of years old (bread c. 30k BCE), what would qualify as modern pizza couldn't exist before the 16th c., although it arrived c. 18th-19th c. 0. https://…
Pizza predates the use of the tomato. The oldest mention of pizza in text is from 997 C.E.
What makes it pizza specifically at that point?