Final answer:
Henry Clay was an American statesman known for promoting the American System and making significant contributions to the American economy in the 19th-century.
Step-by-step explanation:
Henry Clay was an American statesman who served as Speaker of the House of Representatives and Secretary of State. He is best known for his promotion of the American System, a set of economic policies that aimed to strengthen the country's economy. Clay's contributions to the American economy in the 19th-century include advocating for protective tariffs to stimulate domestic manufacturing, supporting internal improvements such as roads and canals, and playing a key role in the passage of the Compromise of 1850 which aimed to address issues related to slavery.
Learn more about Henry Clay's contributions to the American economy in the 19th-century