Given the suggested age of 130,000 years old, that would put it around the peak warm before the beginning of the last Ice Age. At that point, sea level would have been similar to ours which means hominids would be living at current altitudes. Certainly if as the ice began to “swallow” the oceans, then “civilization” would have moved closer to the shoreline and now have been drowned. This whole situation tends to confirm my theory (and that of others) that hominids may have reached relatively high levels of development that were then destroyed by the 100,000+ intervals of Ice Ages.
Regarding civilization in the Okavanga Delta region. The evidence is more than tantalizing, it is monstrous. An area between 300 miles and 400 miles square shows repeated patterns of extended “canals” about a mile apart and running for many miles. Some areas look more weathered that others, and what little data I could find suggest that some areas could be tens of thousands of years old. The nearest “civilization” is Great Zimbabwe in Zimbabwe to the east. The link below shows one photo that probably covers 40 or 50 miles width of land (given that the “furrows” are a mile apart. Check out the video, and then click the Google Earth site. I once spent several hours tracing the GE map throughout the region and it was indeed about 400 miles across. I am astonished that National Geographic or other suitable group has not made a significant effort to study this.
http://solarey.net/large-ancient-irrigation-system-found-south-africa/
At this site are a number of areal images of the irrigation mixed in with a lot of other African images.
Graham Hancock's "Magicians of the Gods" makes a good case for the demise of prior civilization's demise at the hand of comet fragments. Other than that there are at least one scientific study backing up comet fragments as bringing on the end of last Ice Age as well as beginning the Younger Dryas period, Origin of the Carolina Bays
From several years ago if you can find it: A RE-EVALUATION OF THE EXTRATERRESTRIAL ORIGIN OF THE CAROLINA BAYS* by J. Ronald Eyton & Judith I. Parkhurst
A New Paper on the Origin and Evolution of the Carolina Bays
There are others as well.
Apparently the Egyptians at the Luxor Temple carved the Ramses figures with machine precision that we could not duplicate 50 years ago and perhaps not even today, according to measurements recorded by Dunn in his Lost Technologies book. Whatever machines they use are long gone, but there is no way to make them using the primitive tools attributed to have been used used by the Egyptians.
There’s another book, a little “out there”, and the title doesn’t really accurately express the content, but A) it’s around here somewhere, with a bookmark stuck in it, and B) worth a look.
Atlantis and the Kingdom of the Neanderthals: 100,000 Years of Lost History
Colin Wilson (26 June 1931 – 5 December 2013)
https://www.amazon.com/Atlantis-Kingdom-Neanderthals-Years-History/dp/1591430593
https://www.amazon.com/Colin-Wilson/e/B00HFW6KU0/ref=dp_byline_cont_pop_book_1
and regarding the Okavanga Delta:
The Largest Ancient Man Made Canal System on Earth
earthepochs.blogspot.co.uk | April 3, 2014 | johnmjensen jr
Posted on 01/03/2015 4:10:32 PM PST by Fred Nerks
http://www.freerepublic.com/focus/f-chat/3243255/posts