I. Terminology

Today we limit the term Reformation (from Lat. reformatio) exclusively to the events set in motion by M. Luther, ¶ U. Zwingli, and other Reformers, which led in the course of the 16th century to a cleavage within Western Christendom that has lasted to this day. Until well into the 19th century, however, the term still had its original, broader sense of reform (Reform, Idea of), under which the event we call the Reformation was subsumed. I…