The earliest known official or large-scale celebration of Pi Day was organized by Larry Shaw in 1988 at the San Francisco Exploratorium, where Shaw worked as a physicist, with staff and public marching around one of its circular spaces, then consuming fruit pies. The Exploratorium continues to hold Pi Day celebrations.
Pi Day has been observed in many ways, including eating pie, throwing pie, and discussing the significance of the number π. Some schools hold competitions as to which student can recall Pi to the highest number of decimal places.
Here are some cool pie recipes that you can use today or any other day of the year.
Hand Pies
Fork Knife Swoon's Apple Hand Pies
Bon Appetit's Blueberry Hand Pies
Food Network's Cherry Hand Pies
No Bake Pies
Brown Eyed Baker's No Bake S'more Pie
The Kitchen is My Playground's Chocolate Chip Cookie Pie
36th Avenue's Three Layer Chocolate Pie
Ice Cream Pies
Bon Appetit's Turtle Ice Cream Pie
Spoonful's Easy Ice Cream Pie (can be made in ANY flavor!) Easy Ice Cream Pie