Needless to say, there is no critique of the Miller-Urey experiment nor evaluation of its claims; and there is no presentation here of all sides of the evidence as required by Texas's science curriculum standards.
So Pytheas, the mathematician of Marseilles, started off on his northern trip. Unfortunately, his diary and book called The Circuit of the Earth have perished, and our story of geographical discovery is the poorer. But these facts have survived.
However, we can still see a decent overview and also start to look at some of the great names, the Greek mathematicians who would shape the course of Greek geometry. The first, and one of the greatest names, is Thales of Miletus, a mathematician living in the 6th century BCE. He is regarded as the father of geometry and began the process of using deduction from first principles.