 The Babylonian Talmudic academies were all established relatively near to Seleucia-Ctesiphon.The first Talmudic academy was founded in Sura by Rav (175–247) in about 220.One of the most influential Talmudic teachers, Rava (270–350), who was influenced by both Manichaean polemic and Zoroastrian theology, studied in another Talmudic academy at Pumbedita.