Hans Delbr%C3%BCck

Hans Delbrck was a German historian. Delbrck was one of the first modern military historians, basing his method of research on the critical examination of ancient sources, and using auxiliary disciplines, like demography and economics, to complete the analysis and the comparison between different epochs to trace the evolution of military institutions.

Delbrck was born in Bergen on the island of Rgen, and studied at the universities of Heidelberg and Bonn. As a soldier, he fought in the FrancoPrussian War, after which, in 1874, he became for some years tutor to Prince Waldemar of the German imperial family, a brother of the future emperor, Wilhelm II. He served in the Reichstag from 1882 to 1883, and afterward, in 1883, he became an editor of the Preussische Jahrbcher, a noted political magazine. He assumed charge of this publication in 1889, and kept working on it in that capacity until 1920.

Source: Wikipedia