How a farm boy from Wales gave the world pi/π

Did you know that name/symbol for pi/π, one of the most important numbers in maths, was ‘invented’ by William Jones, who was born in 1674 in the Welsh parish of Llanfihangel Tre’r Beirdd, and that the symbol wasn’t adopted universally until as late as 1934?

Read all about it in a fascinating Conversation article by Gareth Ffowc Roberts, Emeritus Professor of Education, Bangor University.

Extract from Synopsis Palmariorum Matheseos –
or: a New Introduction to the Mathematics (1706)
by William Jones