At the age of 12, I saved the life of the son of a station master. As a reward of it I got the opportunity of learning telegraph operation. Then I did the job of a telegraph operator travelling throughout the United States. I, however, saved enough money from my earnings to open a workshop of my own and set about my experiments.
I invented Voice recorder, Printing telegraph and Carbon telephone transmitter. I had made over 1000 experiments before I succeeded in inventing the ‘electric bulb’. In 1882, I set up a power station, which supplied power, first time, to a few residents of New York city.
-Thomas Alva Edison