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Pi Day

Also known as π day

mathematical holiday on March 14

AI overview

Pi Day is a celebration held on March 14th each year to honor the mathematical constant pi (π), which represents the ratio of a circle's circumference to its diameter. The date is chosen because it matches the first three digits of pi (3.14), and the day is observed by mathematicians and math enthusiasts around the world.

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Wikidata facts

Official website: www.piday.org
Image: Larry Shaw, the founder of Pi Day, at the Exploratorium in San Francisco--2007 March 21.jpg

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described at URL: baike.sogou.com/v8482226.htm
Commons category: Pi Day
inception: 1988-03-14
hashtag: piday

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wikidata.org

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Article

Pi Day is an annual celebration of the mathematical constant π (pi) with events mostly in the United States. Pi Day is observed on March 14 (the 3rd month) since 3, 1, and 4 are the first three significant figures of π and was founded in 1988 by Larry Shaw, an employee of the Exploratorium, a science museum in San Francisco.

Celebrations often involve eating pie or holding pi recitation competitions. In 2009, the United States House of Representatives supported the designation of Pi Day. UNESCO's 40th General Conference designated Pi Day as the International Day of Mathematics in November 2019.