PLEIADES + GEONAMES IDS EpiDoc is used for the transcription of the epigraphic texts. For basic tags the Patrimonium EpiDoc converter has been implemented. Different visualisations of the diplomatic and interpretive transcription as well as the display of verse division have been obtained in EpiDoc. PATRIMONIUM EPIDOC CONVERTER Users will be able to display and filter the results of their search both as a list and on an interactive map which has been implemented. The technical basis for the map is MapLibre, an Open Source map library. Users will be able to switch between two different background layers, a present-day map based on OpenStreetMap data from the MapTiler hosting service, and the Digital Atlas of the Roman Empire map from the University of Gothenburg. MAP VISUALISATION EAGLE VOCABULARIES We have used Eagle Vocabularies as far as possible and we have adapted them when necessary. PYTHON The database application is programmed in Python using the Flask framework. It loads and stores data from a relational database (MySQL), which we have given a specifically designed schema that fits our needs. ZOTERO For the bibliography we have set up a Zotero library which will be also extra referenced in the database. mappola.eu @MAPPOLA_ERC mappola.erc@gmail.com BEHIND THE SCENES OF THE MAPPOLA DATABASE Chiara CENATI, Alexander GANGOLY, Victoria GONZÁLEZ BERDÚS, Peter KRUSCHWITZ, Denisa MURZEA, Rainer SIMON, Paul STROBACH, Mirko TASSO