On 31 October 1517, Luther posted ninety-five theses, criticising practises of the church, on the door of the Castle Church of Wittenberg. He also posted a handwritten copy to the archbishop of Magdeburg, Albert of Mainz. The 95 theses of Martin Luther were critical of many practises relating to baptism and the sale of indulgences for the remittance of sin. He also indirectly challenged the Pope’s legitimacy, #86 includ