July 16, 1519: The Disputation of Leipzig, in which Martin Luther argued that church councils had been wrong and that the church did not have ultimate doctrinal authority, ends.   The Leipzig Debate (German: Leipziger Disputation) was a theological disputation originally between Andreas Karlstadt, Martin Luther, and Johann Eck. Karlstadt, the dean of the Wittenberg theological faculty, felt that he had to defend […]

July 17, 1505: Martin Luther enters the Augustinian monastic order at Erfurt, Germany, at age 21