“[Archaeologists’] study of the three oldest stone enclosures at Göbekli Tepe” — a site in present-day Turkey whose monoliths are thought to be 11,500 years old — “has revealed a hidden geometric pattern, specifically an equilateral triangle, underlying the entire architectural plan of these structures. … Thus, thousands of years before the invention of writing or the wheel, the builders of Göbekli Tepe evidently had some understanding of geometric principles and could apply them to their construction plans.” – Haaretz (Israel)