This Phoenician copy of a half-dollar-size coin from ancient Syracuse may provide definitive evidence supporting Professor Mark McMenamin's theory that the ancient Phoenicians were the first Old World explorers in the New World. The coin's Punic (Phoenician) horse is flanked by an uprooted palm tree representing Phoenicia. McMenamin wonders if the dangling roots may indicate the travelers' intent to "transplant" Phoenician culture to the New World.
Phoenicians in north america would explain what happened to all the missing copper in north america.
Huge amounts of copper ore where excavated in unknown times, but the natives didn't do it. It's against their religion and they didn't had the tools and expertise for it. Ofcourse the riddle remains: where they brought the copper to! Maybe it was aliens afterall.