1762 BC BABYLON PLIMPTON 322 PYTHAGOREAN TRIPLETS

A Babylonian clay tablet, about the size of a pocket calculator, listing Pythagorean triples in a display of advanced number theory. Created before 1,762 BC, in the decades before Larsa fell to Hammurabi of Babylon.

The card

• Date — 1,762 BC
• Where — Attributed to Larsa, southern Iraq; now in the Plimpton Collection, Columbia University. 31.2325, 45.8564 — approximate
• Evidence grade — WEB-PHOTO

Works Cited

• Source, Title, Publisher, Year.