3. The decade ushered in an era of prosperity and rebellion.
Answer:
The expansion of railways meant manufacturers could ship goods cheaply.
The building of the railroads changed the environment of the West.
Explanation:
Answer: It is the second one down.
Hope this helps
Answer:
What costly mistake did the Confederate make before the Battle of Antietam? They divided their army. The Union army also found Lee's battle plan at an abandoned Confederate camp.
Explanation: