A single find could easily rewrite history. But this isn't the royal library of Ashurbanipal (wikipedia: "the Royal Library of Ashurbanipal is a collection of more than 30,000 clay tablets and fragments containing texts of all kinds from the 7th century BC"). [And it's not just a fancy name - this was actually a royal library which was the beneficiary of a lot of royal effort to collect all kinds of significant texts.]

This is a bunch of statues and votive offerings of models of body parts. There is apparently no text, and if there were text we probably couldn't read it. This find has no hope of rewriting history.