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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<h2> answer</h2>
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<h3>It provided a pseudoscientific justification for colonial domination based on racial superiority. ... It supported American imperialism within the Western Hemisphere, not outside it. It rejected military force and hastened the end of the conflict. </h3>
<span>William Lloyd Garrison was a prominent American abolitionist, journalist, suffragist, and social reformer</span>
Answer:
a.
a self-propelled engine, powered by steam, diesel, or electricity, for pulling or, sometimes, pushing.
Answer:became President after Kennedy's assassination
Explanation: