Pi Day

Today is March 14th otherwise known as Pi Day. 


Today, I had lunch with my lovely friend Sairah to celebrate Pi Day. We’re both STEM (science, technology, engineering, math) girls and the occasion was a fun excuse to hang out.

The delicious apple pie Sairah made: 


As we ate pie and talked about bridesmaid dresses I began to think about why people celebrate Pi Day in the first place. This lead to the inevitable google search: “history of pi day”

A brief history of Pi Day according to Wikipedia

“In 1988, the earliest known official or large-scale celebration of Pi Day was organized by Larry Shaw at the San Francisco Exploratorium,[6] where Shaw worked as a physicist,[7] with staff and public marching around one of its circular spaces, then consuming fruit pies.[8] The Exploratorium continues to hold Pi Day celebrations.[9]

On March 12, 2009, the U.S. House of Representatives passed a non-binding resolution (111 H. Res. 224),[4] recognizing March 14, 2009 as National Pi Day.[10] For Pi Day 2010, Google presented a Google Doodle celebrating the holiday, with the word Google laid over images of circles and pi symbols.[11]

The entire month of March 2014 (3/14) was observed by some as “Pi Month”.[12][13] In the year 2015, Pi Day had special significance on 3/14/15 (month/day/year date format) at 9:26:53 a.m. and also at p.m., with the date and time representing the first 10 digits of π.[14]

Pi Day has been observed in many ways, including eating piethrowing pies and discussing the significance of the number π, due to a pun based on the words “pi” and “pie” being homophones in English ( /p/), and the coincidental circular nature of a pie.[1][15]

Massachusetts Institute of Technology has often mailed its application decision letters to prospective students for delivery on Pi Day.[16] Starting in 2012, MIT has announced it will post those decisions (privately) online on Pi Day at exactly 6:28 pm, which they have called “Tau Time”, to honor the rival numbers pi and tau equally.[17][18] In 2015, the regular decisions were put online at 9:26 AM, following that year’s “pi moment”.[19]

Princeton, New Jersey, hosts numerous events in a combined celebration of Pi Day and Albert Einstein‘s birthday, which is also March 14.[20] Einstein lived in Princeton for more than twenty years while working at the Institute for Advanced Study. In addition to pie eating and recitation contests, there is an annual Einstein look-alike contest.[20]


Perhaps you hate pie. Perhaps you hate pi. You do you, boo.





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