Adolf Harnack Adolf von Harnack (1851-1930) is recognized as one of the outstanding church historians of his day. He was professor of church history successively in the universities of Leipzig, Giessen, Marburg, and Berlin. His great work, "A History of Dogma", ha exerted an important influence upon modern theological study. Other titles translated into English include "A History of the Expansion of Christianity", "The Apostles Creed", and "The Acts of the Apostles". Read More Read Less