**Pi Day:** International Day of Mathematics or Pi Day is celebrated every year on March 14 to remember the mathematical constant Pi. Pi defines the ratio of the circumference of a circle to its diameter. The value of Pi is 3.14. Pi is the most easily recognized symbol of all maths symbols. This can be identified as π. This day is also special because on this day the great scientist **Albert Einstein** was born.

Pi Day is celebrated by people who love maths all over the world to recognize and appreciate its importance in everyday life. This day is celebrated by different schools, universities and maths organizations around the world for the purpose of providing maths education and increasing awareness about it.

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People who follow the month/date format for dates hardly know what is the connection of this day with March 14. Actually, March 14 shows the value of Pi (3.14). According to 3.14, the month of March is the third month of the year, while March 14 is the day of the month.

## What is Pi Day Theme?

The theme for Pi Day 2023 is Mathematics for Everyone, which was proposed by Marco Jarco Rotairo from Tres Martyrs City National High School, Philippines.

## What is history?

The day was recognized in 1988 by physicist Larry Shaw, as he organized a massive celebration at the San Francisco Exploratorium in the US. This day was first celebrated by cutting pie shaped pies. The value of pi was first calculated by a mathematician named Archimedes of Syracuse.

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It was later accepted by the scientific community when Leonhard Euler used the pi symbol in 1737. In 2019, the United Nations Educational, Scientific and Cultural Organization (UNESCO) decided in its 40th General Conference to celebrate Pi Day as International Mathematics Day.