Copper Age

The Copper Age was a time period between the Neolithic and the Bronze Age. It is also named "Chalcolithic" ( "khalkos" "copper" + "lithos" "stone"). 
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. 
The Vinča culture was the first to develop the knowledge and skills to process copper, i, the late 6th millennium BC. 
Edged weapons such as knives, swords, spearheads, and axes were made of copper, as were brooches, pins, belt boxes and vessels for food and drink.