The answer is a telegraph.
Especially known as the creator of the incandescent lamp, Thomas Edison was responsible for several devices important to the trajectory and development of mankind.
<u>One of the earliest inventions that made Thomas Edison famous, the phonograph was the first machine capable of recording and reproducing sounds.
</u>
The telegraph breakthrough occurred while Edison was trying to improve the telegraph transmitter when he realized that the movement of the paper tape through the machine produced a noise that resembled spoken words when played at high speed.
A. The INC was mostly made up of middle-class people with no following.
Answer:
it was a gateway to the larger west in 1861
