Rav: (d. 247) His given name was Abba bar Aibu, but was known simply as Rav" ("rabbi"). Last of the Mishnaic sages and the first of the Babylonian Talmudic sages. Born in Babylon he studied in Israel in his youth but returned to Babylon and studied in Nahardea where he befriended Samuel bar Abba and was appointed as "Inspector of the Markets" by the exilarch. Rav later moved to Sura where he founded a Torah academy and transformed the city into a center of Jewish scholarship.”