Friday, 14 March 1902
Pi Day is celebrated on 14 March in honour of the mathematical constant pi (3.14), with educational activities, mathematics events, and playful traditions such as eating pie.
Frequently asked questions
- When is Pi Day 1902?
- Pi Day 1902 is on Friday, 14 March 1902.
- What day of the week is Pi Day 1902?
- It falls on Friday.
- How is Pi Day calculated?
- This event is observed every year on 14 March.