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Pi Day

What is Pi Day?
Pi Day is a holiday celebrating the constant $\pi$. Pi Day is celebrated on March 14th, that is, 3/14 (in American date format).
One can celebrate Pi Day by reciting $\pi$, eating pie, etc.

Important Things that happened on Pi Day:
- Albert Einstein's birthday is on Pi Day.
- Stephen Hawking died on Pi Day.

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