I couldn’t call myself a mathematician if I didn’t celebrate Pi Day. Let’s take a moment to appreciate this mathematical constant for… staying constant. Today’s hero came by a hair’s breadth of being changed to 3.2.

Since ancient times mathematicians had been trying to “square the circle”, so given a circle construct a square with the same area, using just a compass and straightedge. Unfortunately for all these fame-seeking mathematicians and amateurs, in 1882 the task was proven impossible. And the culprit was… π.

To square the circle we’d have to construct a square root of π. However, a German mathematician Carl Louis Ferdinand von Lindemann proved that π is a transcendental number, which means it’s not a root of any polynomial with rational coefficients.