The 31st of October 2017 marks the 500th anniversary of Martin Luther pinning his 95 Theses - or reform proposals - to the door of his local university church in Wittenberg. Most scholars now agree that the details of this eye-catching gesture are more legend than hammer and nails, but what is certainly true is that on this day (probably in a letter to his local Archbishop in Mainz), the Augustinian Friar and theologian issued an outspokenly blunt challenge to his own Catholic Church to reform itself from within - especially over the sale of indulgences - which ultimately precipitated a huge religious and political upheaval right across Europe and divided mainstream Christianity ever after.--Publishers description.