Surely you remember Euclid, your old high school pal from sophomore geometry? Ok, he was sophomore geometry, as in Euclidian Geometry. His most famous work, Elements, was written around 300 B.C. and is still used as the foundation for textbooks today. That’s a really long time ago, so if you thought your math book was hard to understand it’s no wonder – this stuff is old. In the mid-1800s, Irish author and civil engineer Oliver Byrne thought the stuff could use an update and some much needed clarification beginning with Euclid’s famous first sentence: I. A point is that which has no parts. II. A line is length without breadth.