From the award-winning author of The Missionary Movement in Christian History (one of the 100 most influential books of the 20th century, according to Christianity Today comes a new book that offers readers remarkable new insights into the ways Christianity has interacted with cultures. Fresh understandings of Pentecostalism, African traditional religion, and the ironic ways in which Western missionaries affected change--for both good and ill--in ways they never dreamed of insure that readers will never again think the same way about the history of World Christianity.