- July 17 -

Yellow Pig Day

Yellow Pigs Day or Yellow Pig Day (July 17) is a holiday celebrated by some mathematicians, in recognition of the Yellow Pig and the number 17.  The Yellow Pig is believed to have originated with mathematicians Michael Spivak and David C. Kelly, while they were students at Princeton...

Yellow Pig Day

Yellow Pigs Day or Yellow Pig Day (July 17) is a holiday celebrated by some mathematicians, in recognition of the Yellow Pig and the number 17.

The Yellow Pig is believed to have originated with mathematicians Michael Spivak and David C. Kelly, while they were students at Princeton University in the early 1960s. They began listing interesting properties of the number 17, and somehow the 17-eyelashed yellow pig was born.
Michael Spivak has since written many famous math textbooks which contain yellow pigs. Spivak's references to yellow pigs are not always direct; some textbooks contain references to Chinese policemen. David Kelly runs Hampshire College Summer Studies in Mathematics (HCSSiM), a summer program for mathematically-talented high school students, all of whom have been introduced to the 'cult' of the Yellow Pig.
References to yellow pigs are not uncommon among mathematicians, particularly those who attended HCSSiM or worked with Spivak or Kelly. Several mathematicians maintain collections of yellow pigs.

Yellow Pigs Day events have been held by mathematicians since at least the 1960s. Most celebrations occur on July 17, although others are held on May 17 (May being the '17th month' of the previous year) and September 17 (a convenient time for college students).
The most elaborate festivities are held at HCSSiM, where the holiday has been celebrated annually for roughly 34 years. In preparation for the event, students decorate shirts (often mathematically themed) with yellow pigs on them. On Yellow Pigs Day students, staff, and visiting alumni wear these shirts. Ultimate has long been the official sport of the day, and a competitive student/alumni game is held. In recent years, origami yellow pigs have been folded.
David Kelly gives a lecture on the historical and mathematical properties of the number 17, and his impressive collection of well over 289 (17 squared) yellow pigs is on display. The celebration concludes with the singing of Yellow Pigs Day carols and the eating of a yellow pig cake. Gifts containing or consisting of yellow pigs and mathematical knick knacks featuring the manifold properties of 17 are frequently exchanged among friends.
Source:
http://en.wikipedia.org/wiki/User:Samir/Yellow_Pigs_Day

Categories:

More holidays on this day:

Disneyland Opening Day (1955)
World Day for International Justice
Tsar Nicholas Day
Gion Matsuri Festival

You may also like...

Interesting events from Funny category.

Bubble Bath Day

People have been enjoying warm baths for thousands of years. In Ancient Rome, bathing at a public facility was part of the daily routine for most citizens. A trip to the Roman baths might include a dip in the caldarium (hot tub), a brief break in the laconicum (sauna), and a refreshing swim in the...

Impossible Astronaut Day

"The Impossible Astronaut" is the first episode of the sixth series of the British science fiction television series Doctor Who. Written by show runner Steven Moffat, and directed by Toby Haynes, the episode was first broadcast on 23 April 2011 in the United Kingdom, as well as the United States...

World Kiss Day

6 July 2013 is International Kissing Day or World Kiss Day. The idea behind the International Kissing Day is that many people may have forgotten the simple pleasures associated with kissing for kissing's sake, as opposed to kissing as mere social formality or prelude to other activities. Kissing...

Video Games Day

Video Games Day celebrates popular video games that stormed onto the market, and changed the way your kids play games. Today, take some time to appreciate the technological achievements of the video game industry. Think about how far we’ve come since the days of the original Nintendo and Game...

Fool's Paradise Day

This Shakespearean term means that someone is in a state of happiness based on false hope, but everyone can use a little false hope every now and then! The phrase dates back centuries, when the first recorded example is found in the Paston Letters of 1462. Shakespeare later used it in Romeo...

International Moment of Frustration Scream Day

So frustrated you could scream? Screaming can make you feel better when you are frustrated. International Moment of Frustration Scream Day, celebrated on October 12th is a day for just that! At 1200 Greenwich time people around the world will join together for 30 seconds to feel the angst and...

Download KeepIn Calendar

Enjoy the interesting stories even on your phone or tablet