The Roman poet Ennius ("ca." 239–169 BC), the leading figure in the Hellenization of Latin literature, considered Pluto a Greek god to be explained in terms of the Roman equivalents Dis Pater and Orcus. It is unclear whether Pluto had a literary presence in Rome before Ennius. Some scholars think that rituals and beliefs pertaining to Pluto entered Roman culture with the establishment of the Saecular Games in 249 BC, and that "Dis pater" was only a translation of "Plouton". In the mid-1st century BC, Cicero identifies Pluto with Dis, explaining that "The earth in all its power and plenty is sacred to Father Dis, a name which is the same as "Dives", 'The Wealthy One,' as is the Greek "Plouton". This is because everything is born of the earth and returns to it again."