Jan Hus (1369-1415), Czech priest convicted of heresy, died at the stake. He preached the reform of the Church and the return to evangelical poverty. This pre-reformer strongly influenced Martin Luther: a century before Luther, he translated the Gospel into Czech and condemned indulgences.
From technological progress to a new era. The development of the typographic printing press had a considerable impact on the diffusion of ideas: it was this which made the rapid diffusion of the Reformation possible.
Notice : The revolution of printing