Question

What impact did railroads have on cities across the United States at the turn of the twentieth century?

Answer 1

Many cities became industrial centers. Hope this helps!!

Answer 2

For many historians the impact is concerned to the many cities became industrial centres.  

This happened because railroads helped with the transportation of goods to others places and in a faster way.  

There was a masive amount of construction was only a tiny piece of the large and varied impact of rail travel on the development of the United States.