He BOUGHT the lightbulb patent of two Canadian inventors Henry Woodward and Mathew Evans. He did get the idea of using a carbon filament from Swan, a British inventor, but he did not use cotton like Swan did, rather his first accepted patent used long lasting bamboo filaments. Also, his first idea had been to use tungsten, not carbon, but he lacked the technology to use tungsten.
Only thing Edison should be credited with is that he realized their needed to be a vacuum in the bulb to keep the filament from burning out.
Fake news, Edison didn't invent the lightbulb.
He invented a better one.
He BOUGHT the lightbulb patent of two Canadian inventors Henry Woodward and Mathew Evans. He did get the idea of using a carbon filament from Swan, a British inventor, but he did not use cotton like Swan did, rather his first accepted patent used long lasting bamboo filaments. Also, his first idea had been to use tungsten, not carbon, but he lacked the technology to use tungsten. Only thing Edison should be credited with is that he realized their needed to be a vacuum in the bulb to keep the filament from burning out.