Béziers is older than Agde , which is called Agathe Tyche in Greek , while Massalia is the Greek name for Marseille .
The latest research ( March 2013 ) shows that Béziers dates from 575 BC , making it older than Agde ( 525 BC ) and a bit younger than Marseille ( 600 BC ) The site has been occupied since Neolithic times , before the influx of Celts .