The Lutheran church began in Germany when Martin Luther broke away from the Catholic Church. On October 31, 1517, Martin Luther presented his 95 Theses, which was a list of grievances against the Catholic church. Luther believed that the church had become corrupt, his principal concern being the selling of indulgences (an indulgence was a donation to the church for the forgiveness of sins). Luther believed that the practice corrupted and perverted the church. His theses listed his grievances and suggestions for reformations to correct the problems within the church. Luther's split from the Catholic church marked the beginning of the Protestant Reformation.