John’s enduring influence is evident today in the rich sights and sounds of Christian liturgy.

When the capital of the Roman Empire was in the grip of a violent earthquake, it fell to one small child to save all the people.

John Mansur, working in Islamic Syria, thought he could safely criticise the Roman Emperor for meddling in Christian worship. But he was wrong.

By the early eighth century, sacred art was thriving in newly-Christian England, but in the East seeds of doubt and confusion had been sown.