Indeed, this is a day worth noting! Did you know that today is Pi day? I remember how much I loved this holiday in high school math class and I was reminded of this same joy by my sixth graders today when they were celebrating after school. After looking it up on Wikipedia, this is what I found. Enjoy!
Pi Day and Pi Approximation Day are two unofficial holidays held to celebrate the mathematical constant π (Pi). Pi Day is observed on March 14 (3/14 in American date format), due to pi being equal to roughly 3.14. Sometimes it is celebrated on March 14 at 1:59pm (commonly known as 'Pie Minute'); if Pi is rounded out to five decimal places, it becomes 3.14159. Pi Approximation Day may be observed on any of several dates, most often July 22 (22/7 - in European date format - is a popular approximation of π).
March 14 happens to be Albert Einstein's birthday, among others, and it is common to sing "Happy birthday Dear Albert". Massachusetts Institute of Technology often mails out its acceptance letters to be delivered to prospective students on Pi Day
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