Date | Event | Place |
---|---|---|
Jul 22, 2021 | Pi Approximation Day 2021 | World |
Jul 22, 2022 | Pi Approximation Day 2022 | World |
Significance: Pi Approximation Day is observed on July 22 (or 22/7 in the day/month date format), since the fraction 22/7 is a common approximation of the mathematical constant Pi, which dates from Archimedes.