Career
After the death in 1772 of his teacher, Rabbi Dov Ber Mezeritch,the Maggid of Mezeritch, most of the opposition to Chassidism was directed against Rabbi Abraham Kalisker and his disciples. In 1777, at about age 36, he joined the first Chassidic aliyah under the leadership of Rabbi Menachem Mendel of Vitebsk(1730-1788) and emigrated to the Holy Land. He died in Tiberias on 9 January 1810 ( 4th of Shevat of the year 5570 from creation).