Any recent ‘big picture’ church history will suffer by comparison with Diarmaid MacCulloch’s A History of Christianity (2009). That book discovers all manner of new evidence about this protean religion and opens up questions about its life in every age and across every continent. Even its subtitle, The First Three Thousand Years, wants us to appreciate that Christianity has to be understood through its origins in the Hebrew and Greek cultures of the millennium before Bethlehem. Geoffrey Blainey’s history begins more conventionally with the birth of Jesus.