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Romans to Tudors
The Plague Years
6,848 recorded plague years in 1,172 towns, 1347 to 1900: the Black Death's first wave, a return every 13 years or so, and the last outbreaks a century later in the Ottoman Mediterranean.
This is an interactive data study by Dr Tristan Hotham, built from open data. The map runs in your browser: explore it, search for places and switch layers. The write-up explains the method and what the data shows, and the data and code are open for anyone to reuse.
More in Romans to Tudors
Holy Islands20,228 European monasteries and hermitages checked against the shoreline: before 800, 4.3% stood on islands, from Skellig Michael to Iona; after 1100, about one in a hundred.
Britain in AD 500What the ground can place instead of neat kingdoms: 891 pieces of evidence, a sharp east of graves and west of stones, and 24 kingdoms we can name but not draw.
Governing on the MoveKing John and Edward I mapped night by night: John moved on 42% of the days we can follow him, Edward on 23%.
Market Towns That FailedAll 2,173 medieval market places in England and Wales, followed to today: 665 are towns, 1,168 villages, and a few are fields or sea.
From Domesday Mills to Modern Mills6,172 mills in Domesday Book: places that had one are 3.9 times as likely to have a watermill nearby today, but not a windmill.
MintedEngland's Anglo-Saxon and Norman mint towns from 70,995 coins: were they still the big towns in 1377, 1801 and today?