PHLEGON, a Greek historian, was a native of Tralles, in Lydia, and the freedman of the Emperor Hadrian (A.D. 117-138). He was the author of a History or Chronicle, in sixteen books, which ended A.D. 141, and which is now lost. Besides a fragment, De Olympiis, we have also two other works, De Longavis libellus and De Rebus Mirabilibus liber. The edition of Bast (Halle, 1822, 8vo) includes all the valuable annotations of his predecessors; but that of Westermann, in his Scriptores Rerum Mirabilium Græci, 1839, is unquestionably the best.