2. Of Heracleia, was the instructor of Apollonius of Tyana in Pythagorean philosophy, of which he is said to have possessed a very competent knowledge. (Phlilostr. Vit. Apoll. 1.7.) [L.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.