of righteousness could only be obtained by faith in God, or justification by faith.
In 1517 Luther's teachings began to take aim at the Church. It started when a friar began selling indulgences to the townspeople of Wittenberg, where Luther was living at the time. Luther witnessed the people of his town be scammed out of their money by the people who were supposed to be helping, by their religious leaders. This event filled Luther with a passionate anger and on October 31, 1517 he issued his most famous work, his ninety-five theses. This work displayed another of Luther's most important teachings, that the Pope only had authority to issue a pardon on the punishments that he had inflicted.