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Iron Working allows the building of legions, a cheap offensive unit.

It is a prerequisite of bridge building and gunpowder.

Iron Working discovery (Civ1)

Discovering technology on the PC.


Building on the experience of their Bronze Working, ancient smelters learned Iron Working, the manufacture and fabrication of a much more useful metal. Iron ore was extremely common compared to copper and tin, and Iron was harder, less brittle, and could hold a much sharper edge. It was an ideal material for tools and weapons. Some observers consider the development of Iron Working to have been a key step in the advance of civilization. It made workers much more efficient and was found useful in many new applications.

Civilization Advances

Advanced FlightAlphabetAstronomyAtomic TheoryAutomobileBankingBridge BuildingBronze WorkingCeremonial BurialChemistryChivalryCode of LawsCombustionCommunismComputersConscriptionConstructionCorporationCurrencyDemocracyElectricityElectronicsEngineeringExplosivesFeudalismFlightFusion PowerFuture TechGenetic EngineeringGunpowderHorseback RidingIndustrializationInventionIron WorkingLabor UnionLiteracyMagnetismMap MakingMasonryMass ProductionMathematicsMedicineMetallurgyMonarchyMysticismNavigationNuclear FissionNuclear PowerPhilosophyPhysicsPlasticsPotteryRailRoadRecyclingRefiningReligionRepublicRoboticsRocketrySpace FlightSteam EngineSteelSuperconductorTheory of GravityTradeUniversityWheelWriting