Introduction
Arnold Otto Erich Brandenburg (31 July 1868, Stralsund – 22 January 1946, Leipzig) was a German historian.
His main work Die Reichsgründung ("The Founding of the Reich", 2 vols. plus 1 vol. with documents) covers the origins of the modern German national movement and the founding of the Second Empire by Bismarck. The German historian Hans Herzfeld calls it "critical and reliable in its judgment" ("solide und kritisch zuverlässig im Urteil") and Herbert Helbig in Neue Deutsche Biographie "objective, deliberate and not without a critical attitude towards the problems of Bismarck's Empire" ("sachlich, kühl und nicht ohne kritische Einstellung zu der inneren Problematik des Bismarckreiches").
In 1933 Brandenburg signed the Loyalty Oath of German Professors to Adolf Hitler and the National Socialist State.