Periodization
The division of the millennia of Jewish history into periods is a procedure frequently dependent on philosophical predilections. The Christian world long believed that until the rise of Christianity the history of Judaism was but a “preparation for the Gospel” (preparatio evangelica) that was followed by the “manifestation of the Gospel” (demonstratio evangelica) as revealed by Christ and the Apostles. This formulation could be theologically reconciled with the assumption that Christianity had been preordained even before the creation of the world.
In the 19th century, biblical scholars moved the decisive division back to the period of the Babylonian Exile and the restoration of the Jews to the kingdom of Judah (6th–5th century bce). They asserted that after the first fall of Jerusalem (586 bce) the ancient “Israelitic” religion gave way to a new form of the “Jewish” faith, or Judaism, as formulated by the reformer Ezra (5th century bce) and his school. In Die Entstehung des Judentums (1896; “The Origin of Judaism”) the German historian Eduard Meyer argued that Judaism originated in the Persian period, or the days of Ezra and Nehemiah (5th century bce); indeed, he attributed an important role in shaping the emergent religion to Persian imperialism.
These theories, however, have been discarded by most scholars in the light of a more comprehensive knowledge of the ancient Middle East and the abandonment of a theory of gradual evolutionary development that was dominant at the beginning of the 20th century. Most Jews share a long-accepted notion that there never was a real break in continuity and that Mosaic-prophetic-priestly Judaism was continued, with only a few modifications, in the work of the Pharisaic and rabbinic sages well into the modern period. Even today the various Jewish groups—whether Orthodox, Conservative, or Reform—all claim direct spiritual descent from the Pharisees and the rabbinic sages. In fact, however, many developments have occurred within so-called normative or Rabbinic Judaism.
In any event, the history of Judaism can be divided into the following major periods: biblical Judaism (c. 20th–4th century bce), Hellenistic Judaism (4th century bce–2nd century ce), Rabbinic Judaism (2nd–18th century ce), and modern Judaism (c. 1750 to the present).