This should help you out.
Answer:
By 1860, 30,000 miles (49,000 km) of railroad tracks had been laid,.
By 1860, 30,000 miles (49,000 km) of railroad tracks had been laid, with 21,300 miles (34,000 km) concentrated in the northeast.
Answer:
it's the use of hieroglyphics
Answer:
The unprecedented levels of production in domestic manufacturing and commercial agriculture during this period greatly strengthened the American economy and reduced dependence on imports. The Industrial Revolution resulted in greater wealth and a larger population in Europe as well as in the United States
