When the railroads first began in the United States the trains were drawn by horses. Not until 183 1 LUas there a successful locomotive uSed. In this same year the locomotive. "Puffing Billy." ran a race with a horse-drawn train, and the "iron horse" proved (0 be far swifter than its flesh and blood competitor. This experiment led to other similar ones, with the result that the invention had proved il s superiorilY. Accordingly. by 1834 the horse had almost entirely been displaced by the steOmdriven locomotive. ulIctivities
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