In what ways did developments in transportation bring about economic and social change in the United States in the period 1820-1860?



Answer :

It is not an exaggeration to say that the US underwent a "transportation revolution" during this time. Before paved roads occurred, it cost practically the same amount to ship something to Europe as it did to send it on land in the US. Paved roads of course increased economic output but making the transfer of supplies much easier.