What were Martin Luther's beliefs regarding salvation and how did he advocate for salvation by faith alone?

Martin Luther believed that salvation could only be achieved through faith in Jesus Christ, not through good works or deeds. He advocated for salvation by faith alone by emphasizing the importance of personal belief in Jesus as the only way to be saved, rather than relying on rituals or traditions of the Catholic Church. Luther's teachings sparked the Protestant Reformation and led to the formation of new Christian denominations that emphasized salvation through faith.