Light Bulb
Thomas Alva Edison
Thomas Edison Invented the light bulb in 1879. He wasn't the only one who tried to come up with the light bulb. But was the one that successfully finish the product.
Purpose of Light Bulb
The purpose of the light bulb was to produce light when the Sun is not shining. To help people to see things better in gloomy or dark conditions and to be able to see their way if they wanted to go somewhere at night.