What economic activity was most widespread in the united states in the early 1800s

In the early 1800s, the US was relatively new (25 years old), and so had not developed into an industrial economy. Cotton farming was widespread during the period as the conditions in the south permitted it, it was vital for the industrial revolution in Europe and was easily grown and cultivated.

So basically Cotton farming is your answer :)

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Ok what subject does the question need tone in? thanx