Bronze age covers the period roughly from the IV to the I Millennium BC. At this time there appeared articles of copper, which was made of copper nuggets. Copper can be easily forged, it was pretty household items, jewelry. However, the product was unstable, because copper is a soft metal. But sometimes copper ore was found to be a significant amount of tin, and then smelting in the furnace was quite a different metal: durable and beautiful. So the person has received the bronze medal, and realizing how good it is, was deliberately added to copper other metals.
Bronze made weapons, household items and labor, jewelry.
In the bronze age people began to process precious metals, of which from sotavlyali various cult objects, jewelry.