4. Of Olympia, an author or collector of riddles (γρῖφοι), is mentioned by one of the interlocutors in the Deipnosophistae of Athenaeus (x. p. 448c.) as ὁἑταῖροςἡμῶν, and lived therefore at the beginning of the third century of our era.
William Smith. A Dictionary of Greek and Roman biography and mythology. London. John Murray: printed by Spottiswoode and Co., New-Street Square and Parliament Street. In the article on Soranus, we find: "at this present time (1848)" and this date seems to reflect the dates of works cited. 1873 - probably the printing date.