<span>First of all there was no Dark Ages really. Term Dark Ages itself was invented by renaissance authors who tried to glorified their own age by bashing what proceeded the. Actual changes were, as always are, very gradual. </span>
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.
<span />
Anarchism. It is a political philosophy that usually aims to pursue self-voluntary, governed societies. It does not believe in any central authority and as such laws should be ignored and governments should be eliminated. It believes every man should be equal and individually free.
WQDASSSSSSSSSSSSSSSSSSSSSSSSS