Thanks to Eli Whitney by 1824 the U.S. had adopted the practice of?

By 1824, thanks to Eli Whitney, the U.S. had adopted the practice of interchangeable parts in manufacturing. This innovation revolutionized production processes, allowing for the mass production of goods and simplifying repairs, as individual components could be easily replaced. Whitney's methods were particularly significant in the manufacturing of firearms and laid the groundwork for modern industrial practices. This shift contributed to the rise of factories and the growth of the American economy.