I thought discovery was the legal tool for finding facts, as far as original man is concerned, the oldest human remains: it was in Ethiopia, and it was called ‘Handy Man’ , translated from Aramaic, incidentally, the language of Jesus.
All other aborigines were transplants.
Ancient Aramaic has very old middle eastern-African roots.
They gradually disappears because
1.at that time maritime transportation over ocean is not easy, it is impossible to send a large group of colonists across acean easily and safely as the Spanish did later.
at time time, commerce is not that well developed, sending people across ocean to mine gold and silver and then sell those mined gold and silver back to the old world will not cover the costs and risks of maritime transportation, it does not make sense in bussiness.
The reason why it is called America is because of Amerigo Vespucci who discovered it before Columbus did
Not that he was the actual discoverer himself since it has been acknowledged that others came before him
If the semantics of the word “discoverer” or the word discovering" has to meet two conditions - (1.) to be the first one who has arrived and (2.) to know for sure what exactly has been discovered -, then nobody has ever discovered North America.