TIL:

TIL:

historians Robert Friedel and Paul Israel list 22 inventors of incandescent lamps prior to Joseph Swan and Thomas Edison. They conclude that Edison’s version was able to outstrip the others because of a combination of three factors: an effective incandescent material, a higher vacuum than others were able to achieve (by use of the Sprengel pump) and a high resistance that made power distribution from a centralized source economically viable.

My man Humphry Davy heads the list, but this is beginning to sound like one of those cases where it was actually the Dutch Arabs Chinese in 2000 BC.

https://en.m.wikipedia.org/wiki/Incandescent_light_bulb//cdn.embedly.com/widgets/platform.js