Christianity is the most enduring and influential legacy of the ancient world, and its emergence the single most transformative development in Western history. Even the increasing number in the West today who have abandoned the faith of their forebears, and dismiss all religion as pointless superstition, remain recognisably its heirs. Seen close-up, the division between a sceptic and a believer may seem unbridgeable. Widen the focus, though, and Christianity's enduring impact upon the West can ...