Wouldn't you just know it--there was a Welshman behind Pi?

Celebrate Pi Day!

William Jones , FRS (1675 3 July 1749) was a Welsh mathematician , most noted for his proposal for the use of the symbol (the Greek letter pi ) to represent the ratio of the circumference of a circle to its diameter . He was a close friend of Sir Isaac Newton and Sir Edmund Halley . In November, 1711 he became a Fellow of the Royal Society , and was later its Vice-President. ^[1]

Read all about William Jones, from Anglesey, here , so you can amaze your friends with your grasp of trivia!

Pi, Greek letter ( ), is the symbol for the ratio of the circumference of a circle to its diameter. Pi Day is celebrated by math enthusiasts around the world on March 14th. Pi = 3.1415926535

infinitely without repeating. The symbol for pi was first used in 1706 by William Jones, but was popular after it was adopted by the Swiss Leonhard Euler in 1737.

Buy Pi merchandise, send an ecard, and learn more than you want to about Pi here: http://www.piday.org/