| http://www.w3.org/ns/prov#value | - These people, such as Carnegie, Vanderbuilt, Dupont, and of course J.P. Morgan, made their money on the back of the explosion in use of coal as a source of energy, concomitant with the advance of the industrial revolution and steam power.One of the great fears of these magnates was that of 'over-production' - that some upstart might take it into their head to actually start their own coal-based bu
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