The Classical WorldTechnology Roman roads and aqueducts 312 BCEMajor The Via Appia and Aqua Appia begin a network that eventually spans the empire. ▲ 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 → Roman roads and aqueducts Community notesLoading notes… Learn more ranked by votesDocumentbritannica.comAqueduct (Britannica) ↗Editor's pickDocumentbritannica.comAppian Way (Britannica) ↗Editor's pickBookA. Trevor HodgeRoman Aqueducts and Water Supply ↗Editor's pickVideoSearch on YouTubehow Roman aqueducts worked ↗Editor's pick