After world war 1 (i need 20 characters)
Put simply, the difference between a unitary and a federal government is that a unitary government puts its power in one central government while in a federal system the governing power is divided into federal and local governing bodies that connect to the national government.
I agree with these perspectives on the grounds that there are a few situations where an individual planned to follow up on a good aim however the result wasn't right and here and there an individual expect to act awful after something and the activity ended up being great. My point is that occasionally unexpected things can happen and cause a change to a condition that we have no power in. I trust that an individual ought to be judged in light of their expectations, not their activities.
Answer:
The expansion of railroads impacts the development of the United States 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.
