IMHO bows were used in North America much earlier than 1400 years ago.
The Asian migrants to America from the West would have imported the use of the bow and arrow thousands of years ago.
The Asian migrants to America from the West would have imported the use of the bow and arrow thousands of years ago.
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my understanding is that there were several pulses of migration from west asia. The earliest may go back as far as 30,000 bc.
another pulse of migration may have come around 12,00-14,000 bc.
Neither of these migrations would have had the bow arrow. they were all atlatl hunters.
My understanding is that a new group came to the Americas in several waves starting around 200 AD. Most canadian tribes date from this group—as well as a significant number of American tribes. This group also pushed down into Mexico and formed the basis of central american civilizations there.
These people brought the bow and arrow with them. Likely the bow and arrow being superior technology to the atlatl in combat—would have overwhelmed the locals.