Pi Day 1955

Monday, 14 March 1955

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 1955?
Pi Day 1955 is on Monday, 14 March 1955.
What day of the week is Pi Day 1955?
It falls on Monday.
How is Pi Day calculated?
This event is observed every year on 14 March.