
Samuel O'Reilly patents the first electric tattoo machinemaking the act of getting a tattoo much quicker and less painful, and with this, much more popular, of course!
It is the adaptation of an electric pen that had not been very successful, previously patented by Thomas Edison.
https://en.wikipedia.org/wiki/Samuel_O%27Reilly
https://www.greelane.com/es/humanidades/historia-y-cultura/history-of-the-tattoo-machine-1991695/