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Before gas and electric lighting, towns relied on oil lamps that watchmen had to —lightlightenlitlighting by hand each evening. The introduction of gas lamps in the early nineteenth century made streets considerably —safersafelysafetymore safety and reduced night-time crime in many cities. Electric lighting later —replacedreplacingreplacehas replaced gas almost entirely, offering a brighter and more —reliablereliablyreliabilityrelying alternative that required far less daily maintenance.