Eight thousand years is a very long time but - Graham Hancock

The god believed by the Ancient Egyptians to have taught the principles of astronomy to their ancestors was Thoth: "He who reckons in heaven, the counter of the stars, the enumerator of the earth and of what is
therein, and the measurer of the earth.

Birdman," of whom multiple depictions have survived in the Mississippi Valley. He is unmistakably part falcon, part man, just like the god Horus of the Nile Valley.

Although I have no doubt that the ancients had developed special means for manipulating the physical world - means that our own technological society is sometimes unable to match - I think it is obvious that their main project was a profound spiritual quest & the dilation of the mind through the pursuit of esoteric knowledge. It is in this area, I believe, that we have the most to learn from our ancestors, where their great minds were put to work for thousands of years to penetrate the riddles of existence.