His Ninety-five Theses altered the Christianity history

In 1516, Archbishop Albrecht von Brandenburg, who was deeply in debt, got permission from Pope Leo X to sell a unique plenary indulgence that would offer forgiveness of the temporal punishment of crime. In response, Martin Luther decided to write a letter to Albert of Brandenburg on October 31, 1517, enclosing a copy of his “Disputation of Martin Luther on the Power and Efficacy of Indulgences”. This later became known as the Ninety-five Theses.

Despite aiming to begin an academic discussion on church customs rather than an all-out attack on Catholic Rome, his tone was accusatory, as evidenced by Thesis 86, in which he asked: “Why does the pope, whose wealth today is greater than the wealth of the richest Crassus, build the basilica of St. Peter with the money of poor believers rather than with his own money?”

According to common belief, on Saturday, October 31, 1517, Luther nailed a paper of his Ninety-five Theses to the entrance of the Wittenberg Castle church. This important event is recognized as the beginning of the Protestant Reformation, and October 31 is celebrated every year as Reformation Day.