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Menachem Mendel Schneerson, the seventh rebbe of the Chabad-Lubavitch Hasidic movement, also known as Lubavitch, is a branch of Hasidic Judaism that originated in the town of Lubavitch in what is now Belarus. Schneerson was the leader of the movement from 1950 until his death in 1994 and is considered one of the most influential Jewish leaders of the 20th century.