When Martin Luther was 37 years old he spent ten months at the Wartburg studying, writing, and reflecting. He felt destined to recover for Germany a truer version of Christianity than that offered by medieval religion, which to him was corrupt and superstitious. How did he come to this view? ‘Becoming a reformer’ charts Luther's childhood, education, and background to help answer this question. Luther had two realizations. The first, the ‘reformation discovery’, was that the righteousness or justice of God was revealed in the gospel not the law. The second related to regret over upsetting his father by deciding to be a monk.