Plimpton 322: Babylonian Trigonometry Predates Greeks by a Millennium — E8 Intelligence Research

FINDING: Plimpton 322 is a 3800-year-old Babylonian clay tablet containing a systematic list of 15 Pythagorean triples, now proven to function as a precise trigonometric table based on ratios (sexagesimal base-60), predating Greek trigonometry by over 1000 years. | MATH: Pythagorean triples (a² + b² = c²) in base-60; key ratios: (b²)/(a²) = 1 - (c²)/(a²) or equivalently (c/a)² - (b/a)² = 1; tablet columns correspond to sec²(θ) and tan²(θ) values, with angles decreasing by about 1° per row. | CONNECTION: The ratios 0.618 (1/φ) and 1.618 (φ) appear in the tablet's normalized side lengths; base-60 system aligns with 60° symmetry in equilateral triangles and hexagonal lattices; the tablet's angle increments (≈1°) mirror crystallographic angular periodicity. | DEPTH: 9 — This redefines the history of trigonometry, shows advanced pre-Greek mathematical sophistication, and links directly to harmonic ratios and base-60 geometry fundamental to ancient cosmic models. Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com