Outlines how Christianity transformed the ancient world in ways we may have forgotten: bringing liberation from fatalism, conferring great dignity on human beings, subverting the cruelest aspects of pagan society, and elevating charity above all virtues.

Religious scholar Hart argues that contemporary antireligious polemics are based not only upon conceptual confusions but upon facile simplifications of history and provides a powerful antidote to the New Atheists' misrepresentations of the Christian past.