Final answer:
Martin Luther posted his 95 Theses on the door of a church to publicly criticize the misuse of indulgences and spark a discussion for reform.
Step-by-step explanation:
Martin Luther posted his 95 Theses on the door of a church primarily because he was publicly criticizing the misuse of indulgences. He believed that salvation could not be achieved through the purchase of indulgences but rather through repentance and God's mercy. Luther's intention was to spark a discussion within the church that would lead to reform.
Martin Luther posted his 95 Theses on the door of a church primarily as an act of public protest against the perceived misuse of indulgences within the Catholic Church. Luther vehemently opposed the practice of selling indulgences as a means to obtain forgiveness for sins or reduce time in purgatory. Instead, he asserted that salvation could only be attained through genuine repentance and the mercy of God.
By affixing his Theses to the church door in Wittenberg in 1517, Luther aimed to initiate a scholarly debate and draw attention to what he saw as corruption within the Church. However, the act had unintended consequences, sparking a larger movement that eventually led to the Protestant Reformation. Luther's bold action marked a pivotal moment in history, challenging established religious practices and laying the groundwork for significant reforms within Christianity.