Answer :
There are different kinds of patterns. The pattern of Americans between 1820 and 1850 is that the population of cities increased.
- In Between 1820 and 1840, the American population was said to have increased from 10 million to 17 million.
As the American industry did developed, the quality of American's life was said to have also improved also:
There was high population growth, some small communities were expanded to bigger cities.
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