Question

who invented light bulb ​

Answer 1

◆Thomas Alva Edison invented light bulb .

Answer 2

Of course Thomas Alva Edison invented light bulb first.

Continuing to improve his design, by November 1879, he filed for a U.S. patent for an electric lamp using “a carbon filament or strip coiled and connected … to platina contact wires”. The filament was made from a piece of carbonized thread. From coneption to invention, this is one of Thomas Edison's early light bulbs