A ‘prominent liberal cleric’ in London has held an Islamic prayer service in his church, St John’s Waterloo. ‘We all share these traditions,’ he announced, ‘so let us celebrate our shared traditions, by giving thanks to the God that we love, Allah.’ How deliciously pagan of him.

One way ancient Greeks tried to make sense of the bewildering array of gods they came across was to make links between them, both in name and function.