Answer:
When American won Independence from England in 1776, there were 13 colonies which formed a federal government. Colonies expanded from east coast to west forming 34 states by 1861. There were differences between states in the north and states in the south – which resulted in the American Civil War.
The war put an end to the institution of slavery.The war abolished the secession of states for all times to come. In the economic sphere, the war led to the growth of large scale manufacturing industries.
More area came under cultivation – particularly in the western regions on North America.Use of more machines – which enhanced production.Regulation of banking system ((National Banking Act) and use of paper currency contributed to the growth of the nationwide business. New weapons were used.
Improvement in transport and communication