The schism that split the Russian Orthodox Church in 1667 alienated thousands of devout men and women. These traditional worshippers, who came to be known as the Old Believers, practiced their faith as outsiders for more than two centuries. Denied the Russian Orthodox Church's sacraments, they in turn denied that its "new" ways could lead them to salvation. Always at odds with the established Russian Orthodox Church and the tsar, the Old Believers...