How did thomas jefferson invent the light bulb?
Actually Eddison did not invent it. It is not clear who really did, with some 22 different people listed prior to Eddison with having made a significant contribution to what would evetually become the light bulb, 1802, Humphry Davy, did some pioneering work but eddison is wiodely accepted as having made the first workable, commercially viable lightbulb.