Zacharias Frankel

Zacharias Frankel was born in Prague in 1801 and trained in both traditional rabbinic learning and the newer academic disciplines of philology and history that German Jewish scholars of his generation were beginning to apply to Jewish texts and law. He served as a rabbi in Dresden through the 1830s and 1840s, a period in which German Jewish religious life was fracturing between an Orthodoxy that treated Jewish law as fixed and unchangeable and a Reform movement that treated much of it as optional or obsolete, to be revised or discarded as modern sensibility required.

Frankel positioned himself against both. At a Reform rabbinical conference in 1845, he resigned in protest when the assembled rabbis voted that Hebrew was not religiously necessary in prayer, a break that made clear he would not follow Reform's more sweeping revisions, while his own scholarly method, treating Jewish law as a living historical development shaped by the practice of the community across centuries rather than as a fixed revealed code, put him equally at odds with Orthodoxy's claim that the law had never meaningfully changed. That middle position, positive toward Jewish law's binding authority while historical in how it explained that authority's development, gave the movement he founded its name: Positive-Historical Judaism.

In 1854 Frankel became founding director of the Jewish Theological Seminary of Breslau, the first rabbinical school explicitly organized around his Positive-Historical method, combining traditional Talmudic training with the critical historical scholarship of the Wissenschaft des Judentums movement his own approach was closely allied with. He led the seminary until his death in 1875, training rabbis who carried his method across German-speaking Europe and, through their students in turn, to the United States.

That American transmission proved to be Frankel's most durable legacy. Solomon Schechter and the other founders of the American Jewish Theological Seminary in the early twentieth century drew directly on Frankel's Positive-Historical principle, that Jewish law binds while also developing historically through communal practice, in building what became Conservative Judaism, the movement that today occupies roughly the position between Orthodox and Reform that Frankel had staked out in Dresden and Breslau nearly a century earlier. Frankel himself never used the name Conservative and never set foot in America, but the seminary model he built at Breslau, and the specific balance of binding law and historical development he argued for against both of his era's more polarized alternatives, is the direct ancestor of the movement that bears that name today.