Answer:
Because using railroads is much faster than using wagons and it was much safer.
Step-by-step explanation:
Also, railroads were important to be used during the Civil War because they could carry troops and weaponry.
In Lincoln's mind, the railroad was part of the Civil War effort. The new line would support communities and military outposts on the frontier. ... A transcontinental railroad, Lincoln hoped, would bring the entire nation closer together – would make Americans across the continent feel like one people.
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