Rudolf Usinger

Rudolf August Usinger was a German historian born in Nienburg.
He studied history at the University of Göttingen, where he was a pupil of Georg Waitz. In 1863 he became a lecturer at Göttingen, and afterwards a professor of history at the Universities of Greifswald and Kiel. Also, he was secretary of the Association for Schleswig-Holstein History.
Usinger is credited with editing the first volume of Siegfried Hirsch's Jahrbüchern des Deutschen Reichs unter Heinrich II. Among his better known publications are the following:Die dänischen Annalen und Chroniken des Mittelalters, 1861.Deutsch-dänische Geschichte 1189-1227, 1863.Napoleon, der Rheinische und der Nordische Bund, 1865.Forschungen zur Lex Saxonum,, 1867. Die Anfänge der deutschen Geschichte, 1875.