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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A business cycle is the term used to describe the fluctuation in the economy - the recession and expansion it goes through. Though business cycles are periodic, they are very irregular.
Democracy it was used in Ancient Greece
It just states that history’s times in Italy basically by Leonardo bruni