Die Deutschen Inschriften des Mittelalters und der Frühen Neuzeit (DI) (engl.: The German Inscriptions of Medieval and Early Modern Times) is one of the oldest modern endeavours to collect and redact medieval and early modern inscriptions in Europe. The project was instituted by the German linguist Friedrich Panzer (Heidelberg) in association with the historians Karl Brandi (Göttingen) and Hans Hirsch (Vienna) as an interacademic venture of epigraphical publication in 1934. Encompassed are inscriptions ranging from the Early Middle Ages to the year of 1650 (and later on) localized in the areas that are today known as the Federal Republic of Germany, the Republic of Austria and South Tyrol. By now the epigraphical research centers involved have published 81 volumes. An individual volume contains usually the inscriptions of a single city or Landkreis respectively called Politischer Bezirk in Austria. The venture is supported by the German Academies of Sciences in Berlin, Düsseldorf, Göttingen, Heidelberg, Leipzig, Mainz and München as well as the Austrian Academy of Sciences in Vienna. The Reichert-Verlag is the publishing house of the scientific editions.
The project "Deutsche Inschriften Online" (engl.: German Inscriptions Online) was planned and implemented as an interacademic venture by the Academies of Sciences in Mainz and Göttingen. The project's aim was to digitise the volumes DI 66/45/56/58/61 and make them available online. The realisation is based on a database which was developed by the Inscription-offices in Greifswald and Mainz. The venture has an innovative character. It is a broadening of the project "Inschriften Mittelrhein-Hunsrück (IMH)" (engl.: Inscriptions of the Middlerhine-Hunsrück) conducted in 2008 in cooperation with the "Institut für Geschichtliche Landeskunde an der Universität Mainz" (engl.: Institute for Regional History located at the University of Mainz). The project digitised the volume "Die Inschriften des Rhein-Hunsrück Kreises I (DI 60)" (engl.: The Inscriptions of the Rhine-Hunsrück District) edited by epigraphist Eberhard J. Nikitsch. In the meantime the website of the IMH-Project has merged into the DIO-Web portal. There is a long term plan for digitising and making available online further volumes; and well as providing an English translation of the DIO-Website.