In 1971 Pines discovered a 10th-century Arabic version of the Testimonium Flavianum by Josephus due to Agapius of Hierapolis.[1][2] Pines also discovered a 12th-century Syriac version of Josephus by Michael the Syrian.[2] Leading scholar Louis Feldman stated that the discovery of Pines "created a considerable stir" in the academic community by drawing attention to two important historical works which had been almost completely neglected before then.[2]