Statistics for occurrence #1 of “Staffordshire” in entry free-trade of Harper's Encyclopedia of United States History:

...e the wages of 1833 with those of 1883 in such a way as to speak for the principal branches of industry, with the exception of agricultural labor. The wages of miners, we learn, have increased in Staffordshire (which, almost certainly, is the mining district of lowest increment) by 50 per cent. In the great exportable manufactures of Bradford and Huddersfield, the lowest augmentations are 20 and 30 per cen...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Staffordshire (United Kingdom) 95 12 9 2 0 user votes

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