Experts from a US museum believe it could be one of the oldest examples of advanced surgery. The Museum of Osteology in Oklahoma said the skull is reported to have been that of a man who was injured in battle before undergoing surgery to implant a piece of metal in his head to repair a fracture.
What if we all got it wrong, and the metal came from the guys helmet as it was bashed in from something heavy and hot that fused part of the helmet to the fractured skull?