Chicago has the a very strong rub hub as does St. Louis. Dallas, Memphis and New Orleans . each are key. Most places that a major sea port that can connect with rail and multiple rail operators (ie Burington Northern, CSX, Norfolk Southern etc. ) will be the strongest hub.
The Takahoni Railroad that ran thru Kentucky to Utah
Harriet Tubman
the railroad
the railroad
Prior to the invention of railroads, most city people lived near where they worked.
Constantinople (which is now known as Istanbul)
Paris is the capital of France and its most important city.
Savannah was the most important city in colonial Georgia
Athens is the most important city in Greece because it is the capital.
why is greenbay the most important city in kenosha
completion of the Erie canal and of the transcontinental railroad
It is both the Capital and the largest city, and the presence of the railroad and the proximity to Denver allowed it to survive.