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See the Best Photos From Pi Day at the Exploratorium

Lauren Hanussak
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Thousands gather, chronologically holding the the first numbers of Pi, on Pi Day at the Exploratorium in San Francisco, Calif., on March 14, 2018. The group circled around the Pi shrine 3.14 times before returning inside to eat pie.  (Lauren Hanussak/KQED)

Happy Pi Day!  Here’s a photo collection of Pi Day festivities hosted by the Exploratorium,  where the holiday was first conceived. The day celebrates the wonders of this mathematical phenomenon.

Laney, a San Francisco local, 28-year-old marketer, poses for a photo on Pi Day at the Exploratorium in San Francisco, Calif., on Wednesday, March 14, 2018. “I’ve memorized over 300 digits of pie,” she said. “Anyone can enjoy the number, whether you’re a student or a mathematician.” (Lauren Hanussak/KQED)
A boy holds his sign up during the procession on Pi Day at the Exploratorium in San Francisco, Calif., on March 14, 2018. (Lauren Hanussak/KQED) (Lauren Hanussak/KQED)
Thousands gather, chronologically holding the the first numbers of Pi, on Pi Day at the Exploratorium in San Francisco, Calif., on March 14, 2018. The group circled around the Pi shrine 3.14 times before returning inside to eat pie. (Lauren Hanussak/KQED) (Lauren Hanussak/KQED)
The band Mission Delirium performed throughout the duration of the procession on Pi Day at the Exploratorium in San Francisco, Calif., on March 14, 2018. (Lauren Hanussak/KQED) (Lauren Hanussak/KQED)
The Exploratorium hands out four types of pie from their cafe after the procession on Pi Day at the Exploratorium in San Francisco, Calif., on March 14, 2018. (Lauren Hanussak/KQED) (Lauren Hanussak/KQED)
Camille Martinez, the Exploratorium’s social media coordinator, records herself giving out “pi fives” during the procession on Pi Day at the Exploratorium in San Francisco, Calif., on March 14, 2018. (Lauren Hanussak/KQED) (Lauren Hanussak/KQED)
The line begins to form prior to the Pi Day procession at the Exploratorium in San Francisco, Calif., on Wednesday, March 14, 2018. (Lauren Hanussak/KQED) (Lauren Hanussak/KQED)
Luke Anderson, a 37-year-old finance administrator, traveled from Denver, Colorado to experience Pi Day at the Exploratorium in San Francisco, Calif., on Wednesday, March 14, 2018. Anderson travels around the nation every Pi Day to give speeches about the number pi, as well as rap under the name “Pi Diddy.” Anderson said he also wanted to “see ground zero; the home, the birthplace of pi day itself, which is here at the Exploratorium.” (Lauren Hanussak/KQED) (Lauren Hanussak/KQED)

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