About 8500 years ago, hunter-gatherers living beside Eagle Lake in Wisconsin hammered out a conical, 10-centimeter-long projectile point made of pure copper. The finely crafted point, used to hunt big game, highlights a New World technological triumph—and a puzzle. A new study of that artifact and other traces of prehistoric mining concludes that what is known as the Old Copper Culture emerged, then mysteriously faded, far earlier than once thought.
The dates show that early Native Americans were among the first people in the world to mine metal and fashion it into tools. They also suggest a regional climate shift might help explain why, after thousands of years, the pioneering metallurgists abruptly stopped making most copper tools and largely returned to stone and bone implements.
Earth's largest and purest copper deposits are found around North America's Great Lakes. At some point, Native Americans learned to harvest the ore and heat, hammer, and grind it into tools. They left behind thousands of mines and countless copper artifacts, including lethal projectile points, hefty knives and axes, and petite fish hooks and awls.
When researchers began to date the artifacts and mines, they saw a perplexing pattern: The dates suggested the people of the Old Copper Culture began to produce metal tools about 6000 years ago and then, for reasons that weren't clear, mostly abandoned copper implements about 3000 years ago. After that, early Native Americans used copper mostly for smaller, less utilitarian items associated with adornment, such as beads and bracelets.
About 10 years ago, Pompeani began doctoral research that cast doubt on the Old Copper timeline. He extracted sediment cores from lakes adjacent to prehistoric mines on Michigan's Keweenaw Peninsula and Isle Royale and measured trace metals in the cores, including lead and titanium, that had been released by processing the ore. The analyses showed copper mining began about 9500 years ago in some areas—some 3500 years earlier than once thought.
Fake cIaims,
And the British invaders hunted them down ! Destroyed their culture , knowledge base, faith , tried to evangelise aka civilise them , looted their treasures , kicked them out from their land !
Common sense tells me that they didn't abandon copper weapons. They simple could not find any more copper. They also could have realized how soft the metal was.
Pp this calls for debate because what we found in Harappan sites is way before native Americans era
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