The author writes: "According to Seder Olam Rabbah, the work that forms the basis for almost all rabbinic chronology, the .period from the defeat of the Babylonians by the Medeo-Persians until the beginning of Greek rule, encompassed 52 years and spanned the reigns of three Persian kings. According to the chronology that is universally accepted by historians today (conventional chronology), this period of Persian rule over the land of Israel...