## Why is pi linked to Wales?

It comes from the pen of an 18th century farmer’s son and largely self-taught mathematician from the small island of Anglesey in Wales. The Welsh Government has even renamed Pi Day (on March 14 or 3/14, which matches the first three digits of pi, 3.14) as “Pi Day Cymru”.

### Why did Jones use pi?

William Jones, FRS (1675 – 1 July 1749) was a Welsh mathematician, most noted for his use of the symbol π (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.

**What is the number that we call pi?**

Succinctly, pi—which is written as the Greek letter for p, or π—is the ratio of the circumference of any circle to the diameter of that circle. Regardless of the circle’s size, this ratio will always equal pi. In decimal form, the value of pi is approximately 3.14.

**Who was the first person to use the pi?**

The symbol π was devised by British mathematician William Jones in 1706 to represent the ratio and was later popularized by Swiss mathematician Leonhard Euler.

## What happened to Archimedes?

Archimedes was born about 287 BCE in Syracuse on the island of Sicily. He died in that same city when the Romans captured it following a siege that ended in either 212 or 211 BCE. One story told about Archimedes’ death is that he was killed by a Roman soldier after he refused to leave his mathematical work.

### What did Archimedes say when he died?

The last words attributed to Archimedes are “Do not disturb my circles” (Latin, “Noli turbare circulos meos”; Katharevousa Greek, “μὴ μου τοὺς κύκλους τάραττε”), a reference to the circles in the mathematical drawing that he was supposedly studying when disturbed by the Roman soldier.

**What nationality was Archimedes?**

GreekArchimedes / Nationality

Archimedes, (born c. 287 bce, Syracuse, Sicily [Italy]—died 212/211 bce, Syracuse), the most famous mathematician and inventor in ancient Greece. Archimedes is especially important for his discovery of the relation between the surface and volume of a sphere and its circumscribing cylinder.