Martin Luther was a pivotal figure in the Protestant Reformation, challenging the practices of the Catholic Church during the early 16th century. His primary objections were aimed at the sale of indulgences, which he believed detracted from the true essence of repentance and faith. In 1517, he famously nailed his Ninety-Five Theses to the Church door in Wittenberg, sparking widespread debate and leading to significant religious upheaval across Europe. Luther's stance emphasized salvation through...