John Venn, an English philosopher who spent much of his career at Cambridge, died in 1923, but if he were alive today he would totally be dead, as it is his 180th birthday. Venn was named after the Venn diagram, owing to the fact that as a child he was terrible at math but good at drawing circles, and so was not held back in 5th grade. In celebration of this philosopher’s birthday Google has put up a fun, interactive doodle — just for today. Check it out.
Note: all comments on this post must be in Venn Diagram form.
UPDATE: I forgot to mention Indexed, a site in the overlap between “uses Venn diagrams” and “manages to be pretty amusing.”