hist-brewing: Historical grain prices

[Greg Lindahl]

I saw this on another mailing list:

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The author of _Beer in the Middle Ages and Renaissance_, Richard Unger,
along with Robert Allen, has up this useful database of grain/commodity
prices 1260-1914; some of you may be interested in it:

http://www.history.ubc.ca/unger/htm_files/new_grain.htm