In 1852, the famed Cumberland Road, or National Road, was finally completed. It stretched from Maryland to Illinois, covering nearly
600 miles and five states. How do you think the towns along the
highway benefited from the new traffic? Explain your answer in
paragraph form.

What is the main difference between primary and secondary sources? a. primary sources are historical documents, and secondary sources are modern-day documents. b. primary sources are derived from museums and archives, and secondary sources are created by history students and academics. c. primary sources are found in ancient places with a rich history, and secondary sources are found in historical journals and blogs. d. primary sources are created during a particular historical era, and secondary sources are created by studying primary sources.