What is the purpose of martin Luther's ninety-five thesis?

Martin Luther's Ninety-Five Theses, published in 1517, aimed to challenge the Catholic Church's practices, particularly the sale of indulgences, which he viewed as a corrupt means of fundraising that undermined genuine repentance. The document served as a call for reform, emphasizing salvation through faith alone rather than through monetary contributions. It sparked significant theological debate and ultimately contributed to the Protestant Reformation, leading to a lasting transformation in Christianity.