Happy Pi Day!
The first numerical calculation of Pi is attributed to Archimedes of Syracuse, crunching numbers during the third century B.C.E. But that was just the beginning, and a lot of folks have contributed to the interpretation of Pi along the way.
In 1706, British mathematician William Jones laid the Pi symbol and name on us. “Pi” is the Greek letter which corresponds to the English "p" (as in perimeter, periphery...you get it).
Today is also Einstein's birthday. Pi is employed in his Gravitational Constant.
And as he was born on 3.14 it would appear Einstein was a Pi-sces.
Rim-shot, ba-DUMP-bump!