Who Invented the Lightbulb?

Although Thomas Edison is credited with the invention of the light bulb, he is actually the inventor of the first commercially-produced light bulb. Several earlier prototypes of the light bulb had been presented prior to Edison's invention, but failed to prove efficient enough to warrant mass production.

In 1840, a British inventor, Warren de la Rue, invented an early light bulb that incorporated platinum, since platinum could withstand high degrees of heat. Unfortunately, platinum is very expensive, which made commercial production of the bulb impractical. Ten years later, Joseph Wilson Swan, another British inventor, created a light bulb using carbon. Due to its short lifespan and the lack of technology needed to power it, the carbon bulb was also not considered viable enough for production.