- The data provide information on pairwise dialect similarities for 439 NUTS 3 regions in Germany - Data come from the maps and questionnaires of the Sprachatlas des Deutschen Reichs, digitized using ArcGIS software - The data source is a questionnaire with translations of standardized German sentences into local dialects between 1879 and 1888 - The measure is defined as the number of co-occurrences for all pairs of sites (z-scaled)

{"references": ["Lameli, Alfred (2013): Strukturen im Sprachraum. Analysen zur arealtypologischen Komplexit\u00e4t der Dialekte in Deutschland. Berlin, Boston: de Gruyter."]}