Answer: 1 : a making or becoming specialized. 2a : structural adaptation of a body part to a particular function or of an organism for life in a particular environment. b : a body part or an organism adapted by specialization.
The answer is 'Railroads'
The Industrial Revolution in England lead to the development of trains and fast travel.
The United States quickly adopted the technology and brought in English businessmen and engineers to develop railroads in it's sprawling western states.
Railroads were integral in the early years in to cement newly acquired states under the control of the Federal government.
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It lessens the actual worth of the money because there was so much
