Rabbinic Judaism eventually emerged

Rabbinic Judaism eventually emerged as normative Judaism and in fact many today refer to Rabbinic Judaism simply as "Judaism." Jacob Neusner, however, states that the Amoraim had no ultimate power in their communities. They lived at a time when Jews were subjects of either the Roman or Iranian (Parthian and Persian) empires. These empires left the day-to-day governance in the hands of the Jewish authorities: in Roman Palestine, through the hereditary office of Patriarch (simultaneously the head of the Sanhedrin); in Babylonia, through the hereditary office of the Reish Galuta, the "Head of the Exile" or "Exilarch" (who ratified the appointment of the heads of Rabbinical academies.) According to Professor Neusner:

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