The humanist Philipp Melanchthon (1497–1560) was a colleague of Martin Luther’s as a professor in Wittenberg and became his most important and closest collaborator in the introduction of the Reformation. In addition to his teaching at the university, he authored numerous textbooks, commentaries on ancient writings and biblical books, as well as works on the natural sciences, history, and theology; he served in university administration and was called upon to serve as a consultant for the establishment of schools and universities outside the university. The enormous scholarly breadth of his writings and his contribution to the development of the Christian-humanist educational system are the reasons why he was known as “Praeceptor Germaniae,” or “Teacher of Germany.” As an advisor to the Saxon electors and a participant in Imperial Diets and religious debates, he played a decisive role in shaping the Protestant Reformation. 

The mission and goal of the Melanchthon research project is the critical and annotated complete edition of Philipp Melanchthon’s Correspondence, which comprises approximately 9,800 items. This edition is one of the fundamental source collections for research into early modern German and European history. It documents Melanchthon’s extensive correspondence for the first time in a philologically critical manner and with precise chronology. This highlights Melanchthon’s preeminent role in Reformation theology and church history, as well as the central significance of his universal humanism for the history of European education.