"God is a mathematician" - Plato
It is well-known that people around the globe celebrate mathematics in general, and pi (=3.14159...) in particular, on the dates which correspond to its common approximations.
These dates are March 14, 3.14 by the month-day notation, and July 22, 22/7 by the day-then-month notation.
But the Jewish calendar has its own day for this!
The first day of Succot is the 15 of Tishrei (בְּמִדְבַּר כט:יב וּבַחֲמִשָּׁה עָשָׂר יוֹם לַחֹדֶשׁ הַשְּׁבִיעִי). Hoshana Rabba, six days later, is the 21rst.
And Shmini Atzeret, the great day of closeness between Hashem and His nation - is the 22nd day of the 7 month.
We are His people, and He is our PhD advisor.
