In 1890, when the first missions were established in Alaska north of Bering Strait, not a single Native in the region was a Christian. By 1910 Christianity was nearly universal. The foundation for this dramatic development was laid in Kotzebue Sound between 1897 and 1902 by Robert and Carrie Samms, of the Friends Church, and by an Iñupiaq Eskimo named Uyaraq, who had been converted earlier by Covenant missionaries located south of the study area. Christianity was spread from Kotzebue to the interior, to the Alaskan Arctic coast, and even to the Mackenzie Delta region of Canada, by the Natives themselves. In this paper I document the course of these developments and present an explanation of why they occurred as they did.