**World Pi Day 2023**: Today the whole world is celebrating World Pi Day. Pi Day was first discovered by William Jones. It is celebrated on March 14 at 1.59 pm. The reason behind this is that the value of the mathematical constant pi is 3.14159… (approximate). Read important information and facts related to it. 14 March 1879 marked Albert Einstein’s birth.

**World Pi Day 2023**

World Pi Day is celebrated every year on 14 March to recognize the mathematical constant Pi. The approximate value of pi is 3.14. The theme for Pi Day 2023 this time is “Mathematics for Everyone”, which was proposed by Marco Jarco Rotairo from Tres Martires City National High School, Philippines. When the date is written in month/day format (3/14) it corresponds to the first three digits of the pi value – 3.14.

**World Pi Day** is celebrated every year on March 14 at 1:59:26. Because at this time the value of day and time is 3.1415926. On March 14, the value of pi is found to be accurate to seven digits. Means 3.1415926 Tell that Pi is a Greek letter, which is used as a mathematical constant. During the 40th General Assembly of UNESCO of the United Nations in November 2019, Pi Day was announced to be celebrated as International Mathematics Day. Since then every year Pi Day i.e. March 14 is also celebrated as International Mathematics Day.

In many countries, Pi Day is also celebrated on July 22, because the value of Pi is also 22/7.

**World Pi Day 2023: Theme of Pi Day or Mathematics Day This Year**

The main theme of International Mathematics Day or** Pi Day celebrated in the year 2023** has been ‘Mathematics for Everyone’. On this occasion, UNESCO Director-General Audrey Azoulay said that on this International Mathematics Day, we are celebrating our history which started in Africa 20 thousand years ago.

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**World Pi Day 2023: The History of Pi And Pi Day is Interesting**

Actually ‘Pi’ is used as a constant in mathematical principles. The great mathematician and scientist Archimedes discovered Pi in 287-212 BC. The mathematician of Syracuse was also the first to calculate the value of pi. When Leonhard Euler used the Pi sign in 1737, it was subsequently embraced by the scientific world. Today is also special because on this day the great scientist Albert Einstein was born.

Today, we continue to use pi to determine the distance to a position or course of something, or to determine the distance between stars as well as Earth’s equivalent.

Physicist Larry Shaw recognized this day in 1988. The United States House of Representatives started celebrating March 14 as Pi Day and similarly, UNESCO started celebrating Pi Day as ‘International Mathematics Day’.

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