Genealogy, Family Tree, London History, Geneology, England, UK: "Data for Genealogy and Local History in Greater London and the UK, containing extracts and transcripts from newspapers, manuscripts, directories, and other out of print material, excluding census, mostly pre 1880. Free, unrestricted access, for researchers and genealogists"

Map of England, Maps, English, Borough, County, Political

the maps cover the whole of UK
I forget them too easily
Boundary Commission Maps, 1885.

Source: Report of the Boundary Commissioners for England and Wales.
Printed by Eyre and Spottiswoode, London, 1885.

A really important resource