Question

In what part of the country were most railroads built in the 1850's?

Answer 1

Most railroads were found in the 1850's near the northeast.

Step-by-step explanation:

Some of the major cities are located there. New York, Pittsburgh, Chicago, Boston,

Answer 2

The part of the country where most railroads built in the 1850's was the northeast. This is why some of the most famous and oldest lines are the Pennsylvania, Hudson, Ohio, and Chicago.