Schaff bases his work on the premise that church history in order to be valid and valuable must deal with three factors: 1) God through Christ, 2) man as a responsible moral creature, and 3) Satan as a real being employing the Anti-Christ as his agent at the end of time. Schaff begins his history with an examination of the preparation for Christianity in Judaism and the heathen world and the life and resurrection of Jesus Christ.
The first volume in this series covers Apostolic Christianity from A.D. 1-100. Includes footnotes, charts, maps and contains its own alphabetical index.