More than 2,000 years ago, the hilltop where archaeologists are now digging in Sicily’s Valley of the Temples was where the free citizens of Akragas met to decide their city’s business. Akragas is the Greek name for Agrigento. The place is marked by a semicircular set of stone seating that scholars call an ekklesiasterion (from […]

To this Greek philosopher, follower of Pythagoras and teacher of Heraclitus, to whom he instilled the idea that the arché or principle of all things was fire, are attributed—disputably—the discovery of irrational numbers, the construction of a dodecahedron inscribed in a sphere, and several works on acoustics. He also founded a mathematical section in the […]