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[–] CatInTheHat 0 points 1 point (+1|-0) ago 

He also helped to design RSS when he was like 14

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[–] go1dfish [S] 0 points 2 points (+2|-0) ago 

See Also Acknowledgements on John Gruber's page (the primary figure behind markdown) https://daringfireball.net/projects/markdown/