Who Invented the Telegraph? Joseph Henry, A Bored Math Teacher!

Joseph Henry, not Samuel Morse, invented the telegraph. With the possible help of a black assistant who was restricted from publishing (and beaten for his "impudence"), learn why a bored math teacher would invent the telegraph and why he didn't profit from it.
If you are interested in learning more about Sam Parker, check out the amazing website from Princeton:
slavery.prince...
As usual, the amazing music is from the fabulous Kim Nalley.