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.
The Greek explorer Pytheas is the first to have written of Thule, doing so in his now lost work, On the Ocean, after his travels between 330 and 320 BCE. Descriptions of some of his discoveries have survived in the works of later, often skeptical, authors.