The First FarmersEconomy & Trade Salt production c. 6,000 BCENotable Boiling brine in pots produces salt, vital for preserving food and later a major trade good. ▲ 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 → First fired clay figures → First pottery → Salt production Community notesLoading notes… Learn more ranked by votesBookMark KurlanskySalt: A World History ↗Editor's pickVideoSearch on YouTubehistory of salt production ↗Editor's pick