His year of birth is uncertain. He must have been old enough to teach philosophy by the time Domitian banished all philosophers from Rome ca. 93 AD. He also describes himself as an old man to Arrian ca. 108 AD. cf. DiscoursesArchived 2011-04-10 at the Wayback Machine, i.9.10; i.16.20; ii.6.23; etc.
He was apparently alive in the reign of Hadrian (117–138). Marcus Aurelius (born 121 AD) was an admirer of him but never met him, and Aulus Gellius (ii.18.10) writing mid-century, speaks of him as if belonging to the recent past.
His year of birth is uncertain. He must have been old enough to teach philosophy by the time Domitian banished all philosophers from Rome ca. 93 AD. He also describes himself as an old man to Arrian ca. 108 AD. cf. DiscoursesArchived 2011-04-10 at the Wayback Machine, i.9.10; i.16.20; ii.6.23; etc.
