originally a colour-grinder to the painter Nealces, obtained so much knowledge of his master's art, that he became the teacher of the celebrated painter Pasias, the brother of the modeller Aegineta. (Plin. Nat. 35.11, s. 40.41.) From this statement it follows that he flourished about B. C. 240. [AEGINETA.] [P.S]
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.