The creation of a new history of the Church at the beginning of the third millennium is an ambitious but necessary project. Perhaps nowhere is it needed more than in re-describing the Church's development - its life and its thinking - in the period that followed the end of the 'early Church' in antiquity. The cultural, social and political dominance of Christendom in what we now call 'the West', from about 600-1300, made the Christian Church a shaper...