So as we celebrate Pi Day, let's also remember the genius of Albert Einstein — whose theories still shape the modern world. Einstein passed in 1955; he would be a ripe old 146 today.

Fittingly enough, the day is also Albert Einstein's birthday. Pi has been calculated to be more than 100 trillion digits beyond its decimal point, according to a Google report from 2022.

What is Pi Day you ask? Well, it’s simple – it's because the date is 3/14, the first three digits of the irrational number π (Pi). And like every year, all Pi Day events have Princeton’s ...

July 22 is sometimes referred to as “Pi Approximation Day,” a designation that should annoy anyone who holds pi in affection, given that both 3.14 and 22/7 are approximations of the real ...

March 14 (3/14) is the day we celebrate the mathematical constant pi — 3.14. In honor of the holiday, restaurants across the country offer deals and freebies on pizza and pie.

Pi Day pizza and pie deals in Arizona 2025. Grimaldi's Pizza is offering their giant slices for $3.14 from 11 a.m. to 3 p.m. on Friday, March 14.; BJ's Restaurant & Brewhouse will offer a pizza ...