Who invented the light bulb?

It depends on what your looking for Humphry Davy was the one who first came up with electric light wich casued Thomas Edison to come up with the overall idea of the light bulb.

In 1802, Humphry Davy invented the first electric light. He experimented with electricity and invented an electric battery. When he connected wires to his battery and a piece of carbon, the carbon glowed, producing light. His invention was known as the Electric Arc lamp.

Still life of the first electric light bulb, invented by Thomas Alva Edison in 1879 and patented on January 27, 1880. ... Though he didn't come up with the whole concept, his light bulb was the first that proved practical, and affordable, for home illumination.

climate change is the big reason to the decline of the indus valley which also caused floods. so i dont know what answer would best fit the description thats just what i found online! have an awesome