Answer:The expansion of the railroads in the late 1800s was instrumental in helping the US economy boom. It did this in two ways. First, the railroads created a tremendous amount of demand for goods and labor on their own. As the railroads were being built, they needed huge numbers of people to build them.
Explanation:
The use of vertical integration to create momopolies
Answer:
Armed conflict between the United States of America and Mexico from 1846 to 1848
It actually ended in 1884 I hope this help you!
The South won every major Civil War battle until the Battle of Antietam.
Guinness says that Operation Overload in World War II was the greatest but each teacher probably has a different answer
