What changes took place in the lives of ancient people when they began to process metals?

When people began to process metal, crafts were born: mining, metallurgy. Smelting metal and making items from it took a long time. One of the first metals known to man was copper. People began to make needles, arrowheads, ornaments from copper. Axes, scrapers, copper knives began to displace stone tools. It was believed that a person with large reserves of copper had a high position in the tribe. Trade began to develop actively. Copper items were exchanged for other significant goods.