The American Industrial Revolution was a time era in the eighteenth to the nineteenth century where the United States changed the way they made money and invented new machines to help them maximize their profits. This time period made the United States one of the richest countries in the world. It increased the number of factories in the North which allowed them to make different products they could ship. For the South, the cotton industry was booming more than ever. The American Industrial Revolution greatly improved the United States economy.