Bronze
c. 3300 BC
Tin-copper alloy harder and more durable than either parent metal. Independently invented in Mesopotamia, the Indus Valley, and China within a 500-year window.
Part of First · Watch in the documentary
c. 3300 BC
Tin-copper alloy harder and more durable than either parent metal. Independently invented in Mesopotamia, the Indus Valley, and China within a 500-year window.
Part of First · Watch in the documentary