Legend

Strabo  tells us of a possible pre-Greek settlement at Poseidonia deriving from the legend of the hero Jason and his Argonauts who, according to Strabo’s source, was blown off course on their way back to Greece and ended up on the place.

This tale may reflect back on a possible Thessalian origin for the first Greek settlers, not Sybarite, but it can just as easily be seen as an indication of foreign mariners, themselves Greek, who came across the place before the historical Greek settlement was founded.