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March 14, 2022
Explore Cornwall
Pi Day
Did Neolithic humans build this structure to celebrate Pi Day? Not
likely: Pi Day is a relatively recent phenomenon_invented by
physicist in 1988 and designated by Congress
national holiday in
2009
But it's already almost certainly the most popular holiday
celebrating
mathematical constant: While Pi Day is
young
tradition, the number n (pi) itself has been a fascination since
antiquity, when it was first calculated as the ratio of
circle'5
circumference to its diameter:
You probably know that March 14 was chosen for Pi
since the
date expressed numerically (in month/date format) matches the
number's first digits, 3.14. Aside from eating pie to celebrate,
some
people go to great lengths to memorize digits that go way beyond
3.141592__, which earns them bragging rights in some
um
circles
The world record is
staggering 70,000 digits after the decimal point
the remarkable feat was achieved by 21-year-old student Rajveer
Meena in 2015
history
art
Day