The date can be written as 3.14.15 which are the first digits of pi. That can only happen once every hundred years.
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There is really nothing special about it. It's just a day to remember the number pi.
Pi never ends. That's why it's so special.
If you're celebrating Pi Day today (March 14), then you're a certified math geek or physics geek or maybe even a tech geek. If you're just an outside observer, we thought you might like to know why all the hubbub over 3.1415926535 ... well, that could go on forever, so … On Pi Day, pi enthusiasts wear clothing adorned with the pi symbol, eat pie, and even throw pi-related parties. March 14 is chosen as the day to celebrate pi, because the numerical date, 3/14, represents the first 3 digits of pi. Hardcore Pi Day celebrants are planning special events for 9:26:53 a.m. on March 14, 2015, as the numerical date 3/14/15 9:26:53 represents the first 7 digits of pi, 3.141592653. [Real Pie Chart: America's Favorite Pies] The concept of pi is important to mathematics because of its relationship to the circle; it is a constant representing the ratio of a circle's circumference to its diameter. Since pi is found in so many different equations in math, physics and other sciences, it is considered one of the most important mathematical constants.
Pi day is March 14, or 3/14 because Pi starts 3.14.... We celebrate peoples birthday on the day they were born. Einstein was born on March 14th so we celebrate his, and everyone else who was born on March 14th, on Pi day.
because the first three numbers in pi are 3.14 so they celebrate it on 3/14.
Because March is the third month of the year, so you get 3, and then the fourteenth gives you the number 14. So you get 3.14, the first three digits of pi.