March 14.
Because in the m-dd format, the date gives the first three significant digits of pi.
March 14. 3/14
Pi day is when the date is the same to the first few numbers of Pi (3.14) aka March which is the 3rd month, and the 14th. (3/14)
It is March 14th because the first 3 digits of pi are 3.14
The date can be written as 3.14.15 which are the first digits of pi. That can only happen once every hundred years.
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.
Albert Einstein's birthday is on pi day which is March 14th
Pi day is on March 14th, because Pi=3.14 It is just a day to celebrate pi
The celebration day of pi (3.14159265...)
Pi Day is on march 14(3.14)
We have pi day to sorta symbolize the meaning of pi. I think it is just for fun
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...)