I'm just going to write few more things to the answers
Typewriters, gasoline, bicycles, footwear, silk, nylon, fuel oil, stoves, meat, lard, shortening and oils, cheese, butter, margarine, processed foods (canned, bottled, and frozen), dried fruits, canned milk, firewood and coal, jams, jellies and fruit butter.
The Roman Empire built its capacity early on by seeking to control the Mediterranean.
The answer is that it established the power of the federal government. It allowed state government to overule the federal government also established the power of state government. And decided the the federal government cannot tax states.
