The period from 1820 to 1860 was marked by a growing sense​

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

- The dramatic increase between 1820 and 1850 in the exchange of goods and services in market transactions.

- Resulted from the combined 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).

separate but equal was a legal doctrine in united states constitutional law according to which racial segregation did not violate the fourteenth amendment to the united states constitution, which guaranteed "equal protection" under the law to all people. under the doctrine, as long as the facilities provided to each race were equal, state and local governments could require that services, facilities, public accommodations, housing, medical care, education, employment, and transportation be segregated by race, which was already the case throughout the states of the former confederacy. the phrase was derived from a louisiana law of 1890, although the law actually used the phrase "equal but separate

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