Originally published in Encyclopaedia Judaica, Yearbook 1975-76 (1976), pp. 161-5. Habad (initial letters of Hokhmah, “Wisdom”, Binah, “Understanding”, Da’at, “Knowledge”) is the movement within Hasidism founded by Rabbi Shneur Zalman of Lyady (1745-1812); as the name implies, Habad places a greater emphasis on the use of the intellect in the study of the Torah, and especially in…