The First FarmersIdeas & Belief Megalithic monuments c. 4,500 BCENotable Stone tombs and circles spread across Atlantic Europe. ▲ 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 → Megalithic monuments Community notesLoading notes… Learn more ranked by votesBookMike Parker PearsonStonehenge: A New Understanding ↗Editor's pickVideoSearch on YouTubemegalithic monuments origins Europe ↗Editor's pick