From Protestantism's beginning in the Middle Ages to the role it plays in the modern world, this resource explores the origins, history, customs and movements of the religion. It extends beyond the revolts of theologians such as Martin Luther, John Calvin and John Wesley to examine other Protestant leaders and the movements they inspired, including Joseph Smith and the Mormons, Mary Baker Eddy and the Christian Scientists, Menno Simons and the Mennonites, as well as the Pentecostal and charismatic movements of the mid- to late-20th century.