National Road
…gangs reached Zanesville in 1833, Columbus in 1834, the eastern outskirts of Indianapolis in 1836, Terre Haute in 1838, and the then‑capital of Vandalia, Illinois—591 mi (951 km) from Cumberland—by 1839, when federal contracts ceased. From 1806 to 1838, Congress appropriated about $6.8 million for surveys…