This Currier and Ives lithograph illustrates the railroads' central
role in nineteenth century American economic development. While water
transportation had first facilitated national commerce and western settlement,
by the 1850s railroads had begun to displace steamboats and barges on
many routes. Rails also opened up access to places not served by rivers
or canals. Chicago's location at the Great Lakes' southwestern tip,
coupled with the opening of the Erie Canal in 1825, had made it a great
western transportation center in the 1830s and 40s. By traveling to
the city immigrants and businessmen could reach as far into the continent
as lake travel permitted. The construction of the Illinois and Michigan
Canal opened up water access to the Mississippi Valley by 1848. But
Chicago's position also made it an ideal railroad hub where passengers
and cargo might change from water to rail transportation on their westward
journey. The Illinois Central Railroad mirrored the Mississippi's path,
stretching southward to the Gulf, and other railroads pushed out from
Chicago toward the frontier. Note in this image how the railroad locomotive
has surged into the foreground, cutting in front of the steamboat seemingly
stranded on the river in the background.