Beecher, to instead preach the Social Gospel of liberal Christianity. Adolf von Harnack, (1851–1930), German theologian and church historian, promoted the Social Gospel; wrote a seminal work of historical theology called Lehrbuch der Dogmengeschichte (History of Dogma). Charles Fillmore (1854–1948), Christian mystic influenced by Emerson; co-founder, with his wife, Myrtle Fillmore, of the Unity Church. Hastings Rashdall (1858–1924), English philosopher, theologian, and Anglican priest. Dean of Carlisle from 1917 until 1924. Author of Doctrine and Development (1898). Walter Rauschenbusch (1861–1918) American Baptist, author of "A Theology for the Social Gospel", which gave the movement its definitive theological definition. Harry Emerson Fosdick (1878–1969), a Northern Baptist, founding pastor of New York's Riverside Church in 1922. Rudolf Bultmann (1884–1976), German biblical scholar, liberal Christian theologian until 1924. Bultmann was more of an existentialist than a "liberal", as his defense of Jesus' healings in his "History of Synoptic Tradition" makes clear. Paul Tillich (1886–1965), seminal figure in liberal Christianity; synthesized liberal Protestant theology with existentialist philosophy, but later came to be counted among the "neo-orthodox". Leslie Weatherhead (1893–1976), English preacher and author of The Will of God and The Christian Agnostic James Pike (1913–1969), Episcopal Bishop, Diocese of California 1958–1966. Early television preacher as Dean of the Cathedral of St. John the Divine in New York City; social gospel advocate and civil rights supporter; author of If This Be Heresy and The Other Side; in later life studied Christian origins and spiritualism. Lloyd Geering (b. 1918), New Zealand liberal theologian. Paul Moore, Jr. (1919–2003), 13th Episcopal Bishop, New York Diocese John A.T. Robinson (1919–1983), Anglican Bishop of Woolwich, author of Honest to God; later dedicated himself to demonstrating very early authorship of the New Testament writings, publishing his findings in Redating the New Testament. John Hick (1922–2012), British philosopher of religion and liberal theologian, noted for his rejection of the Incarnation and advocacy of latitudinarianism and religious pluralism or non-exclusivism, as explained in his influential work, The Myth of God Incarnate. William Sloane Coffin (1924–2006), Senior Minister at the Riverside Church in New York City, and President of SANE/Freeze (now Peace Action). Christopher Morse (b. 1935), Professor Emeritus of Systematic Theology, Union Theological Seminary, noted for his theology of faithful disbelief. John Shelby Spong (1931-2021), Episcopal bishop and very prolific author of books such as A New Christianity for a New World, in which he wrote of his rejection of historical religious and