Misnagdim (מתנגדים‎, "Opponents"; Sephardi pronunciation: Mitnagdim; singular misnaged/mitnaged) was a religious movement among the Jews of Eastern Europe which resisted the rise of Hasidism in the 18th and 19th centuries. The Misnagdim were particularly concentrated in Lithuania, where Vilnius served as the bastion of the movement, but anti-Hasidic activity was undertaken by the establishment in many locales. The most severe clashes between the factions took place in the latter third of the 18th century; the failure to contain Hasidism led the Misnagdim to develop distinct religious philosophies and communal institutions, which were not merely a perpetuation of the old status quo but often innovative. The most notable results of these efforts, pioneered by Chaim of Volozhin and continued