The Age of Rabbenu Gershom and Rashi: The Ashkenazic Civilization Develops in Europe - Part I

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Here Rabbi Katz teaches: all Ashkenazic Jewry stemmed from a handful of families; Rabbenu Gershom was the first accepted, European, Rabbinical Sage; how Judaism accepted Talmud as authoritative, etc. Thank you again for historical facts & insights, Rabbi Katz!