Important Days

Pi Day 2025 - March 14

March 17 , 2025 7 hrs 0 min 73 0

The date, when written as 3/14, mirrors the first three digits of Pi.
Pi is an infinitely long, irrational number and its exact value cannot be known.
Since Pi's exact value cannot be known, we can never find the exact area or the circumference of a circle.
The symbol of Pi was discovered by William Jones in the year 1706.
The value of Pi was first calculated by Mathematician, Archimedes of Syracuse.
UNESCO started observing Pi Day as ‘International Day of Mathematics' from the year 2019.
Pi Approximation Day is observed on July 22 (22/7 in the day/month format).