Events from 300 BC

Euclid writes Elements in Alexandria - most influential textbook ever, geometric proofs, 'no royal road'

Euclid's Elements establishes the axiomatic method of mathematical proof, demonstrating systematic deduction from axioms and definitions

Arkamani establishes Meroitic dynasty - new royal line, intensive pyramid building at Meroe begins

Archimedes screw invented - revolutionizes mine drainage, later used throughout Roman mines for water lifting

Celtic coinage begins - imitating Greek and Macedonian coins, especially Philip II gold staters, shows economic sophistication

Celts invent chainmail - revolutionary armor technology later adopted by Romans, made from 20,000+ iron rings