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U.s. Route 40: History of Route 40
The history of U.S. Route 40, including the development of predecessor roads such as colonial roads, the national road, pioneer trails, and various highways.
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U.s. Route 40: History of Route 40
The history of U.S. Route 40, including the development of predecessor roads such as colonial roads, the national road, pioneer trails, and various highways.
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History Magazine: The National Road
This site gives a brief description of the development of the National Road but more interestedly contains an interview with some men in the late 1800's who talked about what life was like while on the Road.
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Infrastructure: Back in Time: The National Road
Read this essay about the National Road, its construction, and development of towns along its route.