If this is true, we will have to change history

All history began about 4000/3000 years ago with Ancient Sumer and Ancient Egypt and a little later ancient China. Before that we were hunter gatherers with our kith, the Neanderthals. 

Unfortunately the Neanderthals were to become extinct and we carried on.

Now we have two discoveries:
1. the civilization of Göbekli Tepe, 12,000 years ago
2, and this finding of 14,000 years ago:

https://www.bbc.com/news/science-environment-44846874

So, where is our history between 14,000 BC to 4000/3000 BC. Some 10,000/11,000 years is missing.

If you want to find the answer, you have to refer to the work of one Graham Hancock.