Final answer:
The Cumberland Road was a crucial achievement of the American System, promoting economic development, national unity, and setting a precedent for infrastructure projects.
Explanation:
The Cumberland Road, also known as the National Road, was a significant achievement of the American System because it was the first federally funded highway built between 1811 and 1837. This road connected the eastern seaboard to the western states, facilitating transportation of people, goods, and communication, which helped unify the expanding country.
One of the key benefits of the Cumberland Road was its role in promoting economic development by providing a reliable transportation route. It also symbolized national unity by physically connecting different regions of the United States, promoting a sense of a shared identity among Americans.
Moreover, the construction of the Cumberland Road set a precedent for future infrastructure projects and government investments in transportation, laying the groundwork for the development of the country's transportation network.
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