Source on that one? That’d be almost a millennium before Norsemen arrived in Greenland, which was a pretty huge journey at that time. Getting to the Caribbean—without coming across via Greenland & Canada, for which there would surely be evidence, would be a much larger step than anything else going on at the time.
A sunken Roman Galleon was found in the Caribbean.
Source on that one? That’d be almost a millennium before Norsemen arrived in Greenland, which was a pretty huge journey at that time. Getting to the Caribbean—without coming across via Greenland & Canada, for which there would surely be evidence, would be a much larger step than anything else going on at the time.
Finding a shipwreck doesn’t necessarily mean the boat was sailed there, it might have been abandoned and drifted with the currents.
That’s how Japanese ships ended up in America as well.
Doesn’t make the Caribbean known to the Romans.
How about an attempt at sailing an Egyptian papyrus boat to the americas
https://www.history.com/this-day-in-history/heyerdahl-sails-papyrus-boat