Celtic Christianity-the form of Christian faith that flourished among the people of Ireland during the Middle Ages- has gained a great deal of attention lately. George G. Hunter III points out that while the attention paid to the Celtic Christians is well deserved, much of it fails to recognize the true genius of this ancient form of Christianity. What many contemporary Christians do not realize is that Celtic Christianity was one of the most successfully evangelistic branches of the church in history. The Celtic church converted Ireland from paganism to Christianity in a remarkably short...