Epiphanius relates that Tatian established a school in Mesopotamia, the influence of which extended to Antioch in Syria, and was felt in Cilicia and especially in Pisidia.
Epifanius menyampaikan bahwa Tatian mendirikan sebuah sekolah di Mesopotamia, yang pengaruhnya mencapai Antiokhia di Suriah, dan terasa di daerah Kilikia, terutama di Pisidia.