In some of his notes, Euler used π to represent 6.28... So why did we adopt 3.14...?
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Home page: https://www.3blue1brown.com

The idea for this video, as well as the live shots, came from Ben Hambrecht, with the writing and animating done by Grant Sanderson.

Special thanks to:
- University Library Basel, for letting us rummage through their historical collection
- Martin Mattmüller from the Bernoulli-Euler center for helpful discussion
- Michael Hartl, author of the Tau Manifesto, for pointing us to obscure references
- Library of the Institut de France

Cinematographer: Eugen Heller

Music by Vincent Rubinetti:
https://vincerubinetti.bandcamp.com/a...

Thanks to these viewers for their contributions to translations
Hebrew: Omer Tuchfeld
Korean: tebaioioo

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