The U.S. economy shifted from an agrarian to an industrial economy during the mid-1800s due to the Industrial Revolution.
The major change that took place in the U.S. economy during the mid-1800s was the shift from a primarily agrarian economy to an industrial economy due to the Industrial Revolution. This transformation involved more Americans leaving farming to work in factories in cities, advancements in technology and invention, and the growth of big businesses.
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