The architectural period that included combining copper and tin to produce bronze. Time Period: 2,300 BC – 700 BC Impacts on history: The use of bronze replaced stone tools and allowed humans to greatly alter their environment. Artifacts: Bronze jewelry, tools/weapons
Iron Age
The architectural period marked by the prevalent use of iron or steel. Time Period: 700 BC – 450 AD Impacts on history: Military dominance for cultures that could produce iron weapons. The iron-blade plow allowed humans to increase food production. Artifacts: Iron farming equipment/weapons, manuscripts