Today’ s obscure holiday is Yellow Pig Day! it is a mathematician’s holiday celebrating yellow pigs (is there such a thing!?!), and the number 17. It has been celebrated annually since the early 1960’s, primarily on college campuses, and primarily by mathematicians. On campus, Yellow Pig Cake and Yellow Pig Carols are tradition!
If you are a mathematician, spend part of the day thinking and working in multiples of 17. And, while you do so, give a little thought to yellow pigs.