I think lots of things, both known and not discovered, invented things. The ancient people's knowledge of astronomy, medicine, astrology, mathemathics and spiritual powers shouldnt be judged only as high imagination power, even the mythology has the truth inside it. The line of history that is drawn by todays and imperial powers cannot be accepted. History is not a declination line, it can be identified as a chain of repeating periods, which will be concluded. Our generation isnt even aware of where did us (humans) come from, how or why we appeared. It isnt something like they thought us as some religious facts (religious knowledge is a bunch of symbolism of ancient knowledge) and political theories, serving some "elite" nation...
Some Sumerian knowledge, more than 5000 years old...
Edited by Oguzoglu