When did brass appear?

Brass dates from 10,000 to 9,000 BC.

So far, the earliest copper products found in the world are mainly in West Asia, such as Iraq's Zawei Chumi region, found copper ornaments, the age of about 10,000 BC to 9,000 BC; Copper ornaments dating from 9000-7000 BC have also been found in the Ali Kashi region of western Iran.

Copper needles and cones have been unearthed at the Chayouni site in southern Turkey, dating to about 8000 BC. These copper products are beaten products of natural red copper, not copper obtained by smelting ore.

From the use of pure copper, to the smelting of copper ore to obtain pure copper, to the smelting of bronze alloy, mankind has experienced a rather long time of exploration, like the magic world of copper piece by piece to create a shining time tunnel.

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