Answer:
Two Great changes of the Era 1820-1860 which revolted to
1.) Industrial Revolution-(The growth of mechanization of industry)
2.) Market Revolution-(Market Revolution had a dramatic increase between 1820 and 1850 because of the exchange of goods and services in market transactions. Making it result in the combine impact of the increased output of farms and factories, the entrepreneurial activities of traders and merchants, and the development of a transportation network of roads, canals, and railroads)
- Not all Americans shared in the new prosperity.
- Created a class divided society (labor class and upper class).
- Challenged the founder's vision of an agriculture republic with few distinctions of wealth (Thomas Jefferson).