International pi day was chosen because it's on March 14 or 3/14 and the first three numbers of pi are 3.14
Larry Shaw, physicist, organized the first pi day in 1988 at the San Francisco Exploratorium. He thought that it would be fun to march around and eat fruit pies.
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International Pi Day, celebrated on March 14th (written as 3/14 in the month/day date format), was chosen to celebrate pi because the numerical value of the mathematical constant pi begins with the digits 3.14. This date format resembles the decimal approximation of pi, making it a fun and fitting choice to celebrate this mathematical concept.
We celebrate pi day because pi equals 3.14........ which is an endless number. It's a fun math class to celebrate pi day on March 14th! Yum... Pie!
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.
Pi Day is March 14. It is that day because it is 3-14 (the first 3 digits of pi). It is just a day to eat pie (the dessert) and celebrate pi (3.141592653589793238462643383279502884197169399375...)
because the first three numbers in pi are 3.14 so they celebrate it on 3/14.
i think the pi was chosen by greek people for 3/14/13