Pi Approximation Day: What Is It About?

Happy, Pi Approximation Day!

"Pi Approximation Day" is held every 22nd day of July since the day/month date format 22/7 is a common approximation of the mathematical constant π (pi).

Another unofficial holiday, the "Pi Day," is also being celebrated on March 14 each year to commemorate π since the date, in month/day format, represents the first three digits of the value of π in decimal form, 3.14.

Among the activities done during the two holidays are pie-eating contests and discussing the relevance of π. In schools, teachers would facilitate pi recitations, pie-baking, and other mathematical games.

In 2010, Google celebrated the "Pi Day" through a Google Doodle -- the word Google was laid over images of circles and pi symbols.

This year, online encyclopedia Wikipedia featured information about pi on its homepage to commemorate the "Pi Approximation Day."

Meanwhile, check out this "Pi Day" song by Youtuber "Asian Glow:"