
Elisha S. Loomis
The 1927 edition of the book containing 230 proofs of the Theorem of Pythagoras... The1940 edition got 370 proofs... The Guinness record is 520 proofs
We just need: your name, the title of the instant, a brief description (just one sentence), an image or a song, or a poem, or whatever is blissfully meaningful, and the link to the source :)