It was a system proposed by Henry Clay of Kentucky for advancing the nation's eonomic growth. It had 3 main parts. The first was a strong banking system, which would provide easy and abundant credit. He also advocated a protective tariff, in which estern manufacturing would flourish, and the third part was the revenues from the tariff, which would provide funds for a network of roads and canals, especially in Ohio Valley. Also, this system was opposed by the Democratic-Republicans because they thought it was unconstitutional.