3. A. Silius, a friend of Cicero, is frequently mentioned by him in his correspondence with Atticus in B. C. 45. (Cic. Att. 10.13, 12.18, 22, 24, 25, 13.50.)
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.