Larsa: on the tablet is one of the oldest mathematical diagrams ever found & the earliest use of the Pythagorean Theorem. The tablet is part of an ancient mathematical textbook that includes a problem involving the construction of an equilateral triangle
ARCHITECTURE: Aerial view of the ruins at Persepolis. Persepolis was the ceremonial capital of the Achaemenid Empire (ca. Persepolis is situated 70 km northeast of the modern city of Shiraz in the Fars Province of modern Iran.