Nikola Tesla really invented the light bulb, with lots of years of research and improvement (and of course lots of years without girls), Nikola Tesla finally did it and invented the light bulb; Nikola Tesla devoted himself into science and has forgotten the fact that he can actually raise a family and go to his son's graduation day, but Tesla sacrificed this type of enjoyment in order to serve the human race and make their lives easier by creating the light bulb. Then one day a douche bag (which is Thomas Edison) came up to him and stole his patent. Which then became famous for his petty crime. (end of story)
To all those who are aspiring to be a great scientist, just always remember that if there's a will, there's a way. You don't need to be super smart to achieve what you want, you just need to be persistent in what you do. Just like Nikola Tesla, he didn't stop dreaming, he followed his dream to be a great scientist and viola he invented the light bulb.