The invention of the light bulb is often attributed to Thomas Edison, who filed a patent for an incandescent light bulb in 1879. However, it's important to note that Edison wasn't the *first* to create a working incandescent light bulb.

Several other inventors had already developed similar devices, including:

* Humphry Davy in 1802, who demonstrated the principle of incandescence with a platinum wire heated by an electric current.

* Warren de la Rue in 1840, who created a platinum filament bulb that could last for about 40 hours.

* Joseph Swan in 1878, who independently developed a similar incandescent light bulb to Edison's.

While Edison's contribution was significant in developing a commercially viable and durable incandescent light bulb, he wasn't the sole inventor. The history of the light bulb is a complex and fascinating story of multiple inventors building upon each other's work.