 He started work on the "Germania Illustrata" with "Germania generalis" and "De origine, situ, moribus et institutis Norimbergae libellus" ("On the origins, site, habits and institutions of Nuremberg").He discovered and published the writings of Hroswitha of Gandersheim.Celtes also discovered a map showing roads of the Roman Empire, the "Tabula Peutingeriana", or Peutinger Table.