Mar 14, 2026
Pi Day 2026
Happy Pi Day!
This Doodle’s Key Themes
About the Pi Day 2026 Doodle
This Doodle celebrates the numerical constant pi (π), highlighting the foundational geometry first used to calculate its limits. Long before modern technology, the Greek mathematician Archimedes popularized an innovative approach: he approximated the value of pi by sandwiching a circle between two 96-sided polygons to determine its precise upper and lower bounds. Today, we honor this mathematical legacy as enthusiasts worldwide celebrate with pi-reciting contests and slices of pie.
Where this Doodle appeared
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The first Doodle launched in 1998, before Google was officially incorporated.
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The first same day Doodle was created in 2009 when water was discovered on the moon.
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