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Celebrate Pi Day: Math's Constant Steals the Spotlight!

3/15/2026

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Summary

Story summary

Pi Day is celebrated on March 14 to recognize the mathematical constant ?.
The date reflects the first three digits of pi, 3.14.
Physicist Larry Shaw first observed Pi Day in 1988.
UNESCO declared International Mathematics Day in 2019.
In 2009, a U.S. House of Representatives resolution recognized Pi Day.

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Story summary

Pi Day is celebrated on March 14 to recognize the mathematical constant ?.
The date reflects the first three digits of pi, 3.14.
Physicist Larry Shaw first observed Pi Day in 1988.
UNESCO declared International Mathematics Day in 2019.
In 2009, a U.S. House of Representatives resolution recognized Pi Day.