This detailed study examines the social, religious, and institutional conflicts accompanying the Russian Schism of the seventeenth century. By analyzing who opposed the reforms of Patriarch Nikon (1652-58) and under what circumstances, the author presents a complex and multi-faceted world of popular religious resistance that has been hidden from view for centuries. The documentary records of Russian church and state archives--most studied here for the first time--reveal that the schism evolved in two phases. The first phase began in 1652 and encompassed the activities of Old Believer...