ALPAGE historical GIS data of Paris now available through EarthWorks

AnaLyse diachronique de l'espace urbain PArisien: approche GEomatique (ALPAGE), is a geohistorical research program aimed at producing data and tools for analyzing the long-term relationships between spaces and societies in pre-industrial Paris.
These data highlight aspects of urban morphology in and around Paris ranging from the 9th century to the 19th century.
This collection includes vector data derived from Philibert Vasserot’s 19th century atlas of Paris, the oldest parcel plan of the city. Other data in this collection include historical road networks, city walls, churches, parishes, and floods. The ALPAGE program's work is made available under an ODBL license, making it freely available and reusable for everyone.