Today is National Pi Day!
It’s celebrated every year on March 14 — 3-14, are the first few digits of Pi
It’s the ratio of a circle’s circumference, to its diameter. The exact number goes on and on, without stopping or repeating.
Competitions take place around the world to see how far a person can memorize and recite “pi”.
Computers have only managed to calculate Pi to its two-quadrillionth digit.
Many also use the day as an excuse to buy insane amounts of pie — of the baked variety.
Here are some of our favorite Pi Day tweets!