 They broke through the walls, and the rest is history. And that was the end of Byzantine culture in Asia Minor that had been there, as I said, before Byzantium actually had been there for, Greek culture had been there for 3,000 years. And within 30 years, all of the Byzantine satellite towns were ethnically cleansed. The Ottomans took over the greatest cathedral in Christendom, Santa Sofia, made it into a mosque. It's now a mosque again.