Question: What civilization's writing system did Ernst Wilhelm Förstemann contribute to the decipherment and understanding?
Sentence (from "Ernst Förstemann"): Ernst Wilhelm Förstemann (Danzig, September 18, 1822 – Charlottenburg, November 4, 1906) was a German historian, mathematician, doctor of linguistics and librarian, director of the Saxon State Library (German: "Sächsische Landesbibliothek" ) in Dresden.
Relevant evidence: Yes