The Human LineTechnology First stone tools 3.3 million years agoTurning point Lomekwi tools in Kenya are the oldest known deliberately made tools. Technology begins. ▲ 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 Community notesLoading notes… Learn more ranked by votesVideoSearch on YouTubeLomekwi oldest stone tools ↗Editor's pick