Isaac Noah Mannheimer

Isaac Noah Mannheimer (October 17, 1793, Copenhagen – March 17, 1865, Vienna) was a Jewish preacher.

The son of a chazzan, he began the study of the Talmud at an early age, though not to the neglect of secular studies. On completing the course of the cathedral school at Copenhagen, he took up philosophy, Oriental languages, and theology at the university there, at the same time continuing his studies in Talmud and Jewish science. When the Jews of Denmark were emancipated in 1814, confirmation was made obligatory, and the office of catechist was instituted by the state, Mannheimer being the first incumbent (1816). The first confirmation took place May 1817. In 1821 Mannheimer went to Vienna, where there was then no congregation, the community being divided into two opposing parties. Mannheimer, who was welcomed by both factions, soon succeeded in organizing a congregation, drafting a program and ritual on the traditional basis and harmonizing the views of the two parties. He returned to Copenhagen in December of the same year. Failing in his attempt to secure a new synagogue for Reform services, he accepted a call to the pulpit left vacant by Zunz in Berlin. German services, however, were interdicted in that city; the temple formerly under the ministry of B. Beer was closed, and the royal cabinet order of 26 December 1823, obtained by the Orthodox party, frustrated the attempt to adapt the old ritual to new forms by delivering German sermons in the chief synagogue. Mannheimer therefore left Berlin and took temporary charge of the pulpit of Hamburg, preaching also at Leipzig during the fairs. In 1824 he married Liseke Damier, and in November of the same year he was called to the new synagogue of Vienna. As he could not receive the title of preacher or rabbi, he was inducted, in June, 1825, as "Direktor der Wiener K. K. Genehmigten Oeffentlichen Israelitischen Religionsschule"; he dedicated the new temple in April, 1826, and officiated there until 1829.

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