Cattle drives in the western United States largely ended in the late 1800s due primarily to a combination of barbed-wire fences and the new convenience of the railroad.
I think he meant he had absolute power because he has the power over all the state
The main purpose of the Department of State (also known as the State Department) is "<span>c. to serve the President as an advising body on issues of foreign state relations," since this would be impossible for the President to do by himself. </span>
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Railroad expansion affected the US economy by creating jobs, establishing a national market, establishing a cattle industry on the Plains, and allowing certain people to acquire great wealth through investing in the railroad.
Railroads created a more interconnected society. Counties were able to more easily work together due to the decreased travel time. With the use of the steam engine, people were able to travel to distant locations much more quickly than if they were using only horse-powered transportation
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