> Karl Benz wasn’t a teamster. Well, no, but he was a locomotive engineer before going into automobiles. > I could see just as plausible a route of origin com

> Karl Benz wasn’t a teamster. Well, no, but he was a locomotive engineer before going into automobiles. > I could see just as plausible a route of origin coming through pottery, Oh, that makes sense. It looks like kilns for pottery can be hotter than for copper, hot enough for iron (although I don't know if that's modern kilns or ancient ones), so it does seem possible you'd first notice the new metal around pottery kilns instead.