The centuries which we designate politically by the names of the dominant powers of the age successively as the Persian, Greek, and Roman periods of Jewish history constitute as a whole an epoch in the religious history of Judaism. In these centuries, past the middle of which the Christian era falls, Judaism brought to complete development its characteristic institutions, the school and the synagogue, in which it possessed, not only a unique instrument for the education and edification of all classes of the people in religion and morality, but the centre of its religious life, and to no small extent also of its intellectual and social life. Through the study of the Scriptures and the discussions of generations of scholars it defined its religious conceptions, its moral principles, its forms of worship, and its distinctive type of piety, as well as the rules of law and observance which became authoritative for all succeeding time. In the light of subsequent history the great achievement of these centuries was the creation of a normative type of Judaism and its establishment in undisputed supremacy throughout the wide Jewish world.
