Your "proof" is some admirer claiming this guy discovered it [1] ? You realize, even if this were true, he'd (atleast) be third in the game. Also where pray tell me where is this glorious "proof" you were bandying about earlier ?

"Legend", you might want to look up the word. Or may be words are not quite for the big-mouthed ? ggrks man!

[1] https://www.quora.com/How-did-Pythagoras-arrive-at-the-Pytha...