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Callalily

(15,385 posts)

2. Pi Day Fun Facts

Reply to Marthe48 (Original post)

Sat Mar 14, 2026, 08:20 AM

Mar 14

Key 2026 Pi Day Facts:

Significance: Pi represents the ratio of a circle's circumference to its diameter, a constant roughly equal to 3.14159.

History: Founded in 1988 by Larry Shaw at San Francisco’s Exploratorium, it is also Albert Einstein’s birthday.

Celebration: Celebrated with mathematical activities and, frequently, eating "pie".

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Recommendations

3 members have recommended this reply (displayed in chronological order):

Marthe48 underpants Rhiannon12866

16 replies

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Highlight:

It's Pi Day! [View all] Marthe48 Mar 14 OP

;-{)..... Goonch Mar 14 #1

Interesting article about PI day Callalily Mar 14 #3

Pi Day Fun Facts Callalily Mar 14 #2

22/7 ... 21.99/7 ... bucolic_frolic Mar 14 #4

Meh EYESORE 9001 Mar 14 #5

Just read that a trillion digits are known Marthe48 Mar 14 #6

My favorite - a Raspberry Pi Wonder Why Mar 14 #7

Happy Pi Day LetMyPeopleVote Mar 14 #8

Happy Birthday Albert Einstein. Born on Pi-day. LetMyPeopleVote Mar 14 #9

Or Pi Day was established on Einstein's birthday? Marthe48 Mar 14 #10

Maybe I'll order a pizza pie for dinner! bif Mar 14 #11

We did Marthe48 Mar 14 #13

Wednesday, Thursday, Pi Day! True Dough Mar 14 #12

Pi Day Mathematical Humor LetMyPeopleVote Mar 14 #14

Excellent! Marthe48 Mar 14 #15

For Star Trek fans-It is a good day to Pie LetMyPeopleVote Mar 15 #16