They did this..thousands of years ahead of the Egyptians ...choosing a more "Freindlier version" of passing the knowledge...one may comment..they were more succesfull than the Egyptians..as their languages and stories are still sung and danced to ..to this day...and we are aware that the Egyptian language went nearly extinct..that the message in their labour..has only been discovered..recently.
Critical study reveals man has learned this in seperate hemispheres..independently...some like to credit an advanced culture for spreading the news so to speak..but real archeology..reveals they got it on their own.
The basic needs of humans never change. What is it worth to you to know exactly when to plow, sow and reap your crop so you may have a successful harvest? 10%, maybe? And from there all the rest flows naturally.
a. cricket
I read that some time after the destruction of Carthage that it was reported that Plutarch spoke that he had read (from 'writings' in the ruins) that the Carthagenians(sp) had traded with nations across the Atlantic. Then we have the 'cocaine mummies' and of course, Solon's tales of Atlantis, as related to him by the Egyptian high priests, etc. I believe there was ancient contact between Asia, Europe, the Americas and Africa. ...and that this contact was broken numerous times (and memory of this contact was forgotten) due to worldwide catastrophies, famine and/or plagues. This is/could be why we have 'exiled' populations of humans of different races all over the globe.