The Classical WorldGovernment & Law Roman Republic founded 509 BCETurning point Romans expel their king and create elected consuls and a Senate, with power divided and limited. ▲ 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 → Potter's wheel → The wheel → Spoke-wheeled chariot → Hittite Empire → Iron Age begins → Rome founded (traditional date) → Roman Republic founded Community notesLoading notes… Learn more ranked by votesDocumentavalon.law.yale.eduThe Twelve Tables (Avalon Project, Yale) ↗Editor's pickDocumentbritannica.comRoman Republic (Britannica) ↗Editor's pickBookMary BeardSPQR ↗Editor's pickBookTom HollandRubicon ↗Editor's pickVideoSearch on YouTubeHistoria Civilis Roman Republic ↗Editor's pick