2006-11-26 09:58:00 · 5 answers · asked by yourworstnightmare 1 in Science & Mathematics ➔ Physics
Around 6000 BC.
2006-11-26 10:05:41 · answer #1 · answered by Dr. R 7 · 0⤊ 0⤋
The Egyptians found that adding a small amount of tin made the metal easier to cast, so bronze alloys were found in Egypt almost as soon as copper was found. Use of copper in ancient China dates to at least 2000 BC. By 1200 BC excellent bronzes were being made in China.
I hope this helps. =D
I got this from wikipedia:
2006-11-26 10:03:53 · answer #2 · answered by boomer_whitman 2 · 0⤊ 0⤋
Copper was in the old testament in the Bible, so I would say at least 1000 years BC.
2006-11-26 10:06:14 · answer #3 · answered by droopydog88 3 · 0⤊ 0⤋
No one knows. It is believed to be not long after fire came into routine use.
2006-11-26 10:01:52 · answer #4 · answered by Sophist 7 · 0⤊ 0⤋
many thousands of years ago.
2006-11-26 10:02:15 · answer #5 · answered by Anonymous · 0⤊ 0⤋