Lowtech Civilizations - Metallic Ages
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- with water wheels, water wheels, swords and swords, famous for metronomes
- with parachutes, stills, daggers and silk, famous for iron mines
- with chariots, toilets, iron mines and daggers, famous for stills
- with daggers, sewers, silk and shipyards, famous for shipyards
- with glass, anchors, aqueducts and an alphabet, famous for sanitation