One of the earliest applications of steam railroad technology was established between what two cities?
a. buffalo and erie, new york
b. new york and lowell, massachusetts
c. charleston and hamburg, south carolina
d. baltimore and ohio

Steam locomotives had been developed after the steam engine was built in the late 17th century, And with it’s improvement by James Watt had room for improvement of the steam engine. There were prototypes as well that were previously created but several had failed until British Engineer George Stephenson built a successful locomotive called Blucher, and for that reason the first public railway was opened.

d) iowa i believe is the answer