Copper age (feb 20, 2300 – jun 21, 3500)
Description:
in the Bronze Age, people added tin to copper to make bronze, an alloy which is much harder than either tin or copper. During the Copper Age, this fact became known, but was not much used because tin was scarce.[1]Added to timeline:
Date:
feb 20, 2300
jun 21, 3500
~ 1201 years