How were class tensions affected by the Industial Revolution
http://www.wsu.edu/~dee/ENLIGHT/INDUSTRY.HTM
http://en.wikipedia.org/wiki/Industrial_Revolution
It has to do with the rise or expansion of the middle class.
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Class tensions tended to be solidified by the Industrial Revolution. Society became more urbanized and a merchant class arose that made money by owning factories. For more information, check these sites.
http://www.wsu.edu/~dee/ENLIGHT/INDUSTRY.HTM
http://www.victorianweb.org/history/Class.html