The First FarmersEconomy & Trade Cylinder seals c. 3,500 BCENotable Carved stone rollers mark property and sign documents, early signatures and trademarks. ▲ 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 Community notesLoading notes… Learn more ranked by votesBookDominique CollonFirst Impressions: Cylinder Seals in the Ancient Near East ↗Editor's pickVideoSearch on YouTubeMesopotamian cylinder seals explained ↗Editor's pick