The Protestant Reformation was the 16th-century religious, political, intellectual and cultural upheaval that arose in Europe, which redefined Christianity .  The start of  Protestant Reformation was not a planned procedure.  It all started with a theologians attempt to discuss some beliefs and practices of the Roman Catholic Church by the publication of Martin Luther's "95 Theses" in 1517 , 500 years ago.  It started a revolution in the Catholic Church ripping it apart into Protestant and Catholicism.  We have just passed the 500 year celebration of this event in history.