Julius Wellhausen (1844-1918), initially a Professor of Old Testament Studies at the Faculty of Theology in Greifswald and then a Professor of Semitic Studies at the Faculties of Philosophy in Halle, Marburg and Göttingen, formulated the modern view of the history of ancient Israel and was also a pioneer in the fields of pre- and early Islamic Arabia and the New Testament. His works have been given frequent praise for their unique literary qualities, which are also evident here in these letters, almost all of which are being published for the first time. This volume contains more than 1,000 letters; among the recipients are names such as F. Althoff, A. v. Harnack, W. Herrmann, A. Jülicher, A. Kuenen, P. de Lagarde, E. Littmann, Th. Mommsen, Th. Nöldeke, Ed. Schwartz, A. Schweitzer and W.R. Smith. The subjects dealt with are diverse and transcend the fields of academia.