It is true because of politics and the government
Answer: North
Explanation:
When the Civil War broke out, the North outclassed the South in anything industrial because they had focused on industrialization while the South had focused on agriculture.
One area the North had complete dominance was in transportation. With railroads being the major means of transportation at the time, the side with more railroads was considered more equipped and the North had more than twice the railroads the South had.
By supporting causes to make sure mexican immagration did not happen
