In the late 18th century, there was a serious schism between Hasidic and non-Hasidic Jews. European Jews who rejected the Hasidic movement were dubbed "Mitnagdim" ("opponents") by the followers of the Baal Shem Tov. Lithuania became the centre of this opposition under the leadership of "Vilna Gaon" (Elijah ben Solomon Zalman), which adopted the epithets "Litvishe" (Yiddish word), "Litvaks" (in Slavic) or "Lita'im" (in Hebrew) those refers to Haredi Jews who are not Hasidim (and not Hardalim or Sephardic Haredim). Since then, all the groups of Hasidic Judaism have been subsumed theologically into mainstream Orthodox Judaism, particularly Haredi Judaism, although cultural differences persist. The Lithuanian spirituality mainly incorporated into the Musar movement.