The Great Britain Historical Database has been assembled as part of the ongoing Great Britain Historical GIS Project. The project aims to trace the emergence of the north-south divide in Britain and to provide a synoptic view of the human geography of Britain at sub-county scales. Further information about the project is available on A Vision of Britain webpages, where users can browse the database's documentation system online. The Great Britain Historical GIS Project has also produced digitised boundary data, which can be obtained from the UK Data Service Census Support service. Further information is available at census.ukdataservice.ac.uk There is one table in this part of the Great Britain Historical Database: Cen_1861 holds an assembly of registration district-level census data for 1861 and vital registration data for 1851-1861 for England and Wales, the Isle of Man and the Channel Islands. Please note: this study does not include information on named individuals and would therefore not be useful for personal family history research.