Data from the project "Nationalutgåva av de äldre geometriska kartorna", 1630–1655

The project for the oldest geometrical maps, which took place between 2001 and 2010, aimed to make the content of these maps accessible to both the scientific community and the public.The large-scale maps were created during the period 1630–1655. The largest collection is held at the Swedish National Archives, within the Land Survey's archives. Additional maps are scattered across other public archives and private ownerships. The total number of map images is approximately 12,000.The project involved a comprehensive inventory of the archives, leading to a significant number of new discoveries. The original maps were scanned by the National Archives' photo unit. Each map image was printed as a scaled copy on archival paper. Following this, all text on the maps was interpreted, transcribed, systematized, and registered within a dedicated database. Additionally, the content on the maps regarding farms and settlements were located and spatially registered as point objects within a GIS application.The "National Edition of the Oldest Geometrical Maps" project was undertaken on behalf of Vitterhetsakademiens kommitté för historiska kartor. Funding was provided by the Royal Swedish Academy of Letters, History and Antiquities and Riksbankens Jubileumsfond (principal investigator: Clas Tollin). Additional funding was provided by the Swedish Research Council to process and publish the database online. The project collaborated with the Institute for Language and Folklore, the Swedish Land Survey (Lantmäteriet), and the Swedish National Archives.