Christianity began as a small movement of Jewish followers of Jesus in Jerusalem and grew across the Roman world within a few generations. Here is what the sources tell us about those first decades.
Christmas combines the biblical nativity accounts with centuries of later custom. The history of December 25 is more contested than the popular explanations suggest.
The Reformation of the sixteenth century reshaped Western Christianity and European society. Here is a fair look at its causes, its core ideas, and how different traditions understand it.
