East Anglian economic geography from 1087 to the present was posted on sharegeo.ac.uk and on giscloud.com; it is now on arcgis.com to further explore it over time. The study of economics and land cover are pushed back as far as possible: early 19th c. for surficial geology, 14th c. for measuring wealth via tax assessment, and 11th. c. for the same via plough shares! How come? Parishes are a persistent geographic unit that allow mash-ups over almost a millenium… Not only that, but changes in land cover mapped over the last 150 years are detailed by satellite imagery change detection in the past generation.