he lived with a d*** in his mouth i lied though.
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john venn lived in the middle of nowhere near doncaster!!!!!!!!!
John Venn.
Venn diagrams are named after their inventor, John Venn.
venn diagram
Ermahghurd this is my first time answering someones ? :) ok here is le answer John Venn Contributed his life to being a philosopher in logic and math. One of the contributions used by John Venn today are the Venn Diagram which compares and contrasts two unlike items. :)