Yeah, we were debating this over at Treefrog, too. I'm very skeptical that the Romans ever made it to the Americas. Their historians documented a lot, though much has been lost. But I don't think they even knew about the Azores, did they? Someone suggested a Roman ship could have gotten blown off course, but I think they were more likely to have sunk long before they ever got across the Atlantic.
Prost!
Brad