Also in 1909, German philosophy Professor Christian Heinrich Arthur Drews wrote "The Christ Myth" to argue that Christianity had been a Jewish Gnostic cult that spread by appropriating aspects of Greek philosophy and life-death-rebirth deities. In his later books "The Witnesses to the Historicity of Jesus" (1912) and "The Denial of the Historicity of Jesus in Past and Present" (1926), Drews reviewed the biblical scholarship of his time as well as the work of other myth theorists, attempting to show that everything reported about the historical Jesus had a mythical character.