Its inventor, John Venn, would have been 180 today.

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Correlation has never looked this cute. Google created an interactive illustration in honor of the 180th birthday of logician and philosopher John Venn — best known, of course, for inventing the circles known as the Venn diagram. The doodle allows you to choose from five different subjects (mammals and sea life, for example) along with five descriptors (thrives in cold, has wings, etc.) and then see the resulting correlation. Okay, it sounds kind of boring, but it’s really quite cute and whimsical.