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Timeline of materials technology : ウィキペディア英語版 | Timeline of materials technology Major innovations in materials technology ==BC==
* 29,000–25,000 BC – First pottery appears *3rd millennium BC – Copper metallurgy is invented and copper is used for ornamentation *2nd millennium BC – Bronze is used for weapons and armor *16th century BC – The Hittites develop crude iron metallurgy *13th century BC – Invention of steel when iron and charcoal are combined properly *10th century BC – Glass production begins in ancient Near East *1st millennium BC – Pewter beginning to be used in China and Egypt *3rd century BC – Wootz steel, the first crucible steel, is invented in ancient India *50s BC – Glassblowing techniques flourish in Phoenicia *20s BC – Roman architect Vitruvius describes low-water-content method for mixing concrete
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