The Human LineTechnology Oldest wooden structure c. 480,000 years agoNotable Interlocking logs at Kalambo Falls, Zambia, show that early humans shaped wood into structures. ▲ 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 → Hand axes (Acheulean) → Oldest wooden structure Community notesLoading notes… Learn more ranked by votesBookDavid W. PhillipsonAfrican Archaeology ↗Editor's pickVideoSearch on YouTubeKalambo Falls oldest wooden structure ↗Editor's pick