“[It would not be long] ere the whole surface of this country would be channeled for those nerves which are to diffuse, with the speed of thought, a knowledge of all this is occurring throughout the land, making, in fact, one neighborhood of the whole country.”
-Samuel F.B. Morse: His Letters and Journals (1914), vol.2,85.
The above quote is referring to what 1840s American invention?
A. The cotton gin
B. The railroad
C. The telegraph
D. The steel plow