Casual Pi Pie Day
July 22, Tuesday
Why July 22:
The date is chosen because of a mathematical approximation of π: 22/7 ≈ 3.14. This approximation has been used since ancient times and is well known in schools. That’s why the holiday is also known as "Pi Approximation Day".
Difference from the main Pi Day:
* March 14 (3/14 in American format) is the more popular and official Pi Day, based on the value 3.14.
* July 22 is the informal, "casual" version, often taken with humor.
* On this day, there are no scientific lectures or conferences, but plenty of pies and fun games.
How it’s celebrated:
* People bake and eat pies – sweet, fruit, pumpkin, and others.
* Math quizzes and playful pi-digit memorization contests are held.
* Pies are decorated with the π symbol or digits.
* Photos of pies and math jokes are shared on social media.
* Some schools host informal themed activities.
Interesting facts:
* The symbol π was first used in 1706 by Welsh mathematician William Jones.
* Pi is an irrational number – it never ends and never repeats.
* Enthusiasts can memorize thousands of digits of π.
* The wordplay between "pi" and "pie" is the foundation of this holiday.
Conclusion:
Casual Pi Pie Day is a celebration that combines math and baking with ease and humor. It’s a perfect time to enjoy pie, remember school math lessons, and simply have a good time.