2021 Date | 14 March 2021 |
---|---|
2022 Date | 14 March 2022 |
UK & Common Holidays | ||
Misc. & Int'l. Observancesℹ | ||
Christian Holidays | ||
Jewish Holidays | ||
Muslim Holidays |
Pi Day in 2021Pi Day celebrates the mathematical constant π (pi), 3.141592653... Pi is the ratio of a circle's circumference to its diameter. The circumference of a circle is defined as its arc length while the diameter is defined as the longest chord of the circle. Top X Posts (formerly Tweets) for Pi Day - in 2021Updated
| ||