- March 14 -

Pi Day

Pi Day is an unofficial holiday commemorating the mathematical constant ? (pi). Pi Day is observed on March 14 (or 3/14 in month/day date format), since 3, 1 and 4 are the three most significant digits of ? in the decimal form. In 2009, the United States House of Representatives supported the...

Pi Day

Pi Day is an unofficial holiday commemorating the mathematical constant ? (pi). Pi Day is observed on March 14 (or 3/14 in month/day date format), since 3, 1 and 4 are the three most significant digits of ? in the decimal form. In 2009, the United States House of Representatives supported the designation of Pi Day.
Pi Approximation Day is observed on July 22 (or 22/7 in day/month date format), since the fraction 22/7 is a common approximation of ?.

History

The earliest known official or large-scale celebration of Pi Day was organized by Larry Shaw in 1988 at the San Francisco Exploratorium, where Shaw worked as a physicist, with staff and public marching around one of its circular spaces, then consuming fruit pies. The Exploratorium continues to hold Pi Day celebrations.
On March 12, 2009, the U.S. House of Representatives passed a non-binding resolution (HRES 224), recognizing March 14, 2009, as National Pi Day.
For Pi Day 2010, Google presented a Google Doodle celebrating the holiday, with the word Google laid over images of circles and pi symbols.

Pi Day is observed on March 14 because of the date's representation as 3/14 in month/day date format. This representation adheres to the commonly used approximation of 3.14 for ?.
The fractional approximation of ?,22/7, resembles the date July 22 in the day/month format, where it is written 22/7. Pi Approximation Day is therefore observed on July 22.

Observance

There are many ways of observing Pi Day. These include eating pie and discussing the significance of the number ?.
The Massachusetts Institute of Technology has often mailed its application decision letters to prospective students for delivery on Pi Day. Starting in 2012, MIT has announced it will post those decisions (privately) online on Pi Day at exactly 6:28pm, which they have called 'Tau Time', to honor the rival numbers Pi and Tau equally.
The town of Princeton, New Jersey hosts numerous events in a combined celebration of Pi Day and Albert Einstein's birthday, which is also March 14. 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.
Source:
http://en.wikipedia.org/wiki/Pi_Day

Categories:

More holidays on this day:

International Day of Action for Rivers
International Ask a Question Day
Einstein’s Birth Anniversary

You may also like...

Interesting events from Science category.

Kid Inventors’ Day

Television. Water skis. Earmuffs. The Popsicle. What do they have in common? All were invented by kids! 500,000 children and teens invent gadgets and games each year. These innovations help make our lives easier - and more fun. Kid Inventors’ Day to be held annually...

International Darwin Day

Darwin Day is a recently instituted celebration intended to commemorate the anniversary of the birth of Charles Darwin on February 12, 1809. The day is used to highlight Darwin's contribution to science and to promote science in general. History The celebration of Darwin's work...

History The celebration of Darwin's work...'>
World Contact Day

World Contact Day was first declared on March 1953 by an organization called the International Flying Saucer Bureau, as a day on which all IFSB members would attempt to send a telepathic message into space. The IFSB voted to hold such a day in 1953, theorising that if both telepathy and alien...

Bunsen Burner Day

Bunsen Burner Day is a holiday that commemorates the date of birth of the inventor of the Bunsen Burner. While not enjoying the status of being considered a major holiday in any country or group of countries, Bunsen Burner Day has been observed for a number of years. The holiday occurs on the same...

World Creativity and Innovation Day

Today is the day to celebrate your creativity and new ideas! World Creativity and Innovation Day has been celebrated in over 46 countries since 2002. People in businesses, organizations, schools, and communities take part in this day to generate new ideas for a brighter future. Marci Segal,...

Vesuvius Day

August 24, 2006 was a sad day for Pluto. Formerly known as a planet, Pluto was downgraded to a dwarf planet that day. August 24 is now recognized as Pluto Demoted Day. Use the day as an opportunity to learn about Pluto, its new status and its connection to central Illinois. These days, Pluto...

Download KeepIn Calendar

Enjoy the interesting stories even on your phone or tablet