A German Reformer remembered as the close friend and colleague of Martin Luther. Melanchthon came under Luther’s influence after taking a professorship in Greek at Wittenberg. In 1521, Melanchthon published Loci Communes, the first systematic presentation of Reformation doctrine. Throughout the Reformation, he strove for unity wherever possible, but at the Marburg Colloquy, he sided with Luther against Zwingli. While controversial because of certain aspects of doctrine that diverged from Luther’s earlier theology, he remains a central figure in the development of Lutheranism, exemplified in his role writing the Augsburg Confession and reforming education throughout Germany.