[In the medieval warm period in England] "They could... grow wine grapes, which I don't think they can yet."
Of course the reality is that wine grapes have been grown in England since 1950, and the wine industry has been thriving for the last couple of decades.
But exactly how does the geographical extent of vineyards today compare to that in the Middle ages?
http://www.spittoon.biz/new_map_of_english_an...Did you know that there are 163 vineyards in England and Wales? Those 163 are members of the English Wine Producers group who claim to represent over three-quarters of England's total wine production, so the 'actual' number is a few more.
The EWP has released a new version of it UK Wine Map - available for free from vineyards, key tourist offices and (soon) from the EWP website.
The map shown is for the English Midlands. Compare it to this map of English vineyards recorded between 1000-1300AD.
For those unfamiliar with the English Midlands:
Latitude 52.4167 - Longitude -1.5500
The significance of Lamb's map?
Keep watching this space!