The Classical WorldMedicine & Health Hippocrates and rational medicine c. 400 BCETurning point Greek physicians attribute disease to natural causes. The Hippocratic Oath still echoes in medicine. ▲ MattersSaveShareTrace roots Longest chain: The Big Bang → First stars ignite → Supernovae seed heavy elements → The Sun forms → Earth forms → First oceans → First life → Photosynthesis evolves → Great Oxidation Event → Complex cells (eukaryotes) → Multicellular life → First animals → Cambrian Explosion → First vertebrates → Jawed fish → Fish walk onto land → The amniotic egg → The Great Dying → Dinosaurs appear → Asteroid ends the dinosaurs → Early primates → Apes split from monkeys → Human line splits from chimpanzees → Walking upright → First stone tools → Genus Homo appears → Homo erectus → Control of fire → Habitual fire and cooking → Homo sapiens appears → Complex language → Natufian villages → Oldest known bread → Agriculture begins → Irrigation → Uruk and the first cities → Cylinder seals → Writing (cuneiform) → Babylonian mathematics → Babylonian astronomical diaries → Thales and natural philosophy → Hippocrates and rational medicine Community notesLoading notes… Learn more ranked by votesDocumentclassics.mit.eduOn the Sacred Disease, Hippocrates (Internet Classics Archive) ↗Editor's pickDocumentbritannica.comHippocrates (Britannica) ↗Editor's pickBookG. E. R. Lloyd (ed.)Hippocratic Writings ↗Editor's pickVideoSearch on YouTubeHippocrates father of medicine ↗Editor's pick