1. Euler Day
Every year on 7th Feb (2/7) is celebrated as Euler day
because Leonhard Euler had calculated
the value of e (a constant) to be 2.7182818. The first two number 2/7 is 7th
February.
2. International Day of Mathematics
UNESCO’s 40th General Conference proclaimed 14 March of
every year International Day of Mathematics in November 2019.
3. World Pi Day
March 14 (3/14) is celebrated as Pi Day around the world. U.S. House of
Representatives passed legislation to formally recognize Pi Day in 2009 and
since then it is celebrated on 14th March which is also the birthday
of Einstein. The idea of celebrating Pi day came in the mind of Physicist Larry
Shaw in 1988 but it took 21 years to get the final idea adopted by the world.
4. Women in Mathematics Day
12th May is celebrated as Women in Mathematics
Day around the world. On 31st July 2018, the Women Committee of
Iranian Mathematics Society presented a proposal that Maryam Mirzakhani’s
birthday – May 12th be recognised as Women in Mathematics Day which
was approved by World Meeting for Women in Mathematics by a vast majority.
5. Tau Day
Like Pi, Tau is a constant and it is double of pi in approximation. Hence
on Every 28th June (6/28) Tau is celebrated around the world
6. Pi Approximation Day
On 22nd July, we celebrate Pi Approximation Day (22/7)
7. Math Storytelling Day
Math Storytelling Day is celebrated on 25th September
every year. It was created by Maria Droujkova and Sue VanHattum in 2009. This day is celebrated to encourage people to tell stories about Mathematicians,
their struggle and contribution and to appreciate the discovery in the
mathematics.
8. Fibonacci Day
On 23rd November (11/23) is celebrated as
Fibonacci day because 11 and 23 both are a part of Fibonacci Sequence .
9. National Mathematics Day
Dr Manmohan Singh in 2011 announced that every year 22nd
December should be celebrated as National Mathematics Day because, the child prodigy
Srinivasa Ramanujan was born on this day.
10. Pythagorean Day
This day is not celebrated every year but any year where
the date, month and year makes a Pythagorean triplet is termed as Pythagorean
day. In 2025, 24/7/25 will be Pythagorean Day as – 242 + 72
= 252
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