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Pi Day

Added • Updated 3 months ago

Added by Ari Spool • Updated 3 months ago by 3kole5
Added by Ari Spool • Updated 3 months ago by 3kole5

Pi Day
Category: Event Status: Submission Year: 1988 Origin: San Francisco, CA Region:
Type: Holiday,
Tags: pi, math, pi day, maths, mathematics,

Additional References: Wikipedia,
Pi Day


Pi Day is an international holiday observed annually in celebration of the Pi (π), the ratio of a circle's circumference to its diameter and one of the most well-known mathematical constants typically approximated as 3.14159, which corresponds to the calendar date March 14th in its numeric format (3/14). Online, the Pi Day is widely celebrated through discussions, homophonic wordplays, such as throwing or eating baked pies, and other creative interpretations of the irrational number.


The earliest known celebration of the Pi Day was organized on March 14th, 1988 by American physicist Larry Shaw, who was then working at the San Francisco Exploratorium[3], with staff scientists and visitors partaking in a symbolic march around one of its circular spaces and eating fruit pies afterwards. In addition, because the holiday coincides with the birthday of the famed theoretical physicist Albert Einstein, the day has grown into a general celebration of math and science.

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  • On March 12th, 2009, the United States House of Representatives passed the bill HRES 224[6], a non-binding resolution which officially designates March 14th as the National Pi Day.

H. Res. 224 In the House of Representatives, U·S, March 12, 2009 Whereas the Greek letter (Pi) is the symbol for the ratio of the circumference of a circle to its diameter Whereas the ratio Pi is an irrational number, which will continue infinitely without repeating, and has been calculated to over one trillion digits; Whereas Pi is a recurring constant that has been studied throughout history and is central in mathematics as well as science and engineering: Whereas mathematics and science are a critical part of our children's education, and children who perform better in math and science have higher graduation and college attendance rates; Whereas aptitude in mathematics, science, and engineering is essential for a knowledge-based society Whereas, according to the 2007 Trends in International Mathematics and Science Study (TIMSS) survey done by the National Center for Education Statistics, American children in the 4th and 8th grade were outperformed by students in other countries including Taiwan Singapore, Russia, England, South Korea, Latvia, and Japan Whereas since 1995 the United States has shown only minimal improvement in math and science test scores; Whereas by the 8th grade, American males outperform females on the science portion of the TIMSS survey, especially in Biology Physics, and Earth Science, and the lowest American scores in math and science are found in minority and impoverished school districts Whereas America needs to reinforce mathematics and science education for all students in order to better prepare our children for the future and in order to compete in a 21st Century economy; Whereas the National Science Foundation has been driving innovation in math and science education at all levels from elementary through graduate education since its creation 59 years ago; Whereas mathematics and science can be a fun and interesting part of a child's education, and learning about Pi can be an engaging way to teach children about geometry and attract them to study science and mathematics; and Whereas Pi can be approximated as 3.14, and thus March 14, 2009, is an appropriate day for "National Pi Day": Now, therefore, be it Resolved, That the House of Representatives- (1) supports the designation of a Pi Day" and its celebration around the world; (2) recognizes the continuing importance of National Science Foundation's math and science education programs; and (3) encourages schools and educators to observe the day with appropriate activities that teach students about Pi and engage them about the study of mathematics Attest: Clerk.

  • On March 14th, 2010, Google celebrated Pi Day by displaying a commemorative Google Doodle with the company's name superimposed over images of circles and π symbols
    on its search homepage in honor of the holiday.

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  • On March 14th, 2012, the admissions office at the Massachusetts Institute of Technology (MIT)[9] began sending its response letters to the applicants on Pi Day at 6:28 p.m. (EST) in dual observance of the Pi (π) and Tau (τ), the latter of which represents the time constant (τ = 6.283185) in physics and engineering.
MIT Regular Action admissions decisions will be available online on Wednesday, March 14, beginning at 6:28 PM ET. When decisions are released, access decisions.mit.edu and log in using the same username and password that you use to log into your MyMIT account. There are no interim screens, so you should be sure you are ready to receive your decision online before logging in to decisions.mit.edu. To ensure that you will receive a decision online, please visit https://decisions.mit.edu/verify.php and enter your username and password. The verify page is available now for applicants to confirm their login ability and decision eligibility. If you've forgotten your MyMIT username and/or password, you may use our automated system to reset it. Visit MyMIT and click on the lost username or password links beneath the log-in box on the right.

  • On March 1st, 2014, many educational institutions and scientific publications declared the entire month of March as "Pi Month," as the month-and-year calendar format for the year of 2014 also matched up as 3/14, in addition to its alignment with the date-and-month calendar format.

A Month of Daily facts about Pi to celebrate March 2014 (3-14)!

  • On March 14th, 2015, many observers of Pi Day paid a special tribute to the holiday at 9:26:53 a.m. and 9:26:53 p.m., as the date-year-time format of those two precise moments represented the first ten digits of π (3.141592653).



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Pi Approximation Day

In addition to the annual observance of Pi Day on March 14th, some mathematicians and academic communities also celebrate Pi Approximation Day on July 22nd in honor of the fraction 22/7, which has been used as a common approximation of π since its introduction by Ancient Greek mathematician Archimedes.

Search Interest

External References

Tags: pi, math, pi day, maths, mathematics,

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