Editors Note: I have actually tried to verify this on Google (the most trustworthy of sources) and I have not found any definitive Yes or No on this claim from this book.

Carthaginian coins have been found on the Azores which is one third of the way across the Atlantic. Roman coins have been found in Venezuela to suggest that Roman ships may have been blown off course and actually landed in North and South America….and probably never returned.

(Book – The Discoverers : A History of Ma’s Search to Know His World and Himself – Daniel J. Boorstin)