medieval-atlas/economic-development/260

Transcription

Overseas trade: the Middle Ages to the sixteenth century Customs returns for coal are recorded onl y from 1488, at a rate of 16d per chalder, but were insignificant in terms of revenue until the 1530s. Rates were raised in 1575 to 35d or 37d and were raised a further seven times between then and 1599, when they stood at 56d; this reflected a dramatic rise in output and a fourfold increase in exports in the thirty years after 1565-9, when they stood at an average of 282 chalders per year. Much of the coal mined at Culross must Coal (in chalders Total 0> b, 0> returns S; ~~ vll)ll) o returns e t Values too small to register on bar chart

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