1 of 9
Supporting the TroopsA Salvation Army worker makes donuts and pies for World War I troops in France in a photo from a 1920 issue of National Geographic.
Photograph by Col. E. J. Parker

9 Mouthwatering Pictures of Pie for Pi Day

Celebrate the quirky holiday by enjoying these photos from our archives.

Published March 14, 2016

March 14 is Pi Day, because the date (3/14) contains the first three digits of the number pi, or 𝛑, the ratio of a circle’s circumference to its diameter.

But if we’re being honest, most people don’t get excited about Pi Day because they loooove geometry—they celebrate the holiday because it is a great excuse to eat pie. It’s also a great excuse to enjoy these historic photos of people making, serving, or eating pie.