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50-60% of Americans uses technology today.
they use these fish nets to catch fish in the west. they also used canoes as technology for so they can find fish.
It is speculated that the native Americans crossed a land bridge over the Bering Strait 15,000 to 30,000 years ago, entering the Americas. However, this is not completely proven. Polynesians may have...
Until and unless the technology is more finely described then the only answer possible is - No Use At All