Here is a scholarly examination by Paul McKechnie of select topics in understanding how early Christianity grew to become the religion of the Roman Empire by the fourth century. Topics include growth of the church, Christians in Caesar's palace, Gnosticism and more. The author examines the following key issues: Which ancient sources are reliable? What was the social makeup of the early Christian movement? What can we determine about the growth rate and persecution of first-century Christians? What do we know about the second generation of Christians? How should we assess the reliability of our various sources from the second and third centuries? What were the nature and extent of persecutions in the second and third centuries? What were the long-term consequences of Paul's making converts within the household of Caesar? Can we gain historical perspective on the diversity that traveled under the name Christian in the early centuries? How were women regarded and what roles did they play? And how was it that a Roman emperor, Constantine, was converted--and what were the implications for the Christian movement?