The Protestant Revolution was a schism in the catholic church started by Martin Luther and continued by John Calvin. It developed into one of the main three branches of modern Christianity, Protestantism. A principal of christianity had always been blind faith, faith in god and in religious leaders. Distrust was brought about by the black plague which some people blamed on the church, still most remained loyal. Reform ideas were pushed by men such as John Wycliffe and Erasmus of Rotterdam but these ideas really took hold in 1517 when Martin Luther, a pastor and professor nailed his 95 theses to the door of the castle church. The theses were a “list of questions and propositions for debate. He believed that that salvation could be reached through faith and by divine grace only and criticized Corruption such as the sale of indulgences by the church. Luther argued against blind faith and spent 10 years of his life translating the bible, which was previously only in latin, into German so that common people could read it for themselves. The invention of the printing press was a large part of Luther’s success, as it made for more accessibility and helped spread his ideas.