Luther's vivid, wild words – powered by new printing technology – set in motion a chain reaction that split the Catholic Church, powered the Reformation and changed the world forever. Naomi Alderman meets this determined thinker.
Famously, Luther walked up to a church in a backwater town and nailed his Ninety-five Theses to the door. The son of a metal smelter, he knew how rough and dangerous life could be; and he was prepared to question, argue and openly insult powerful authorities in defence of his explosive theology.
Special thanks to Lyndal Roper, Regius Professor of History at the University of Oxford.
Produced by BBC Studios Audio in partnership with The Open University.