Although Nabta Playa currently lies within a dry and unforgiving desert, it was not always this way.
Scientists have been able to determine that around 10,000 BC, a climatic change occurred over North Africa caused by a northward shift of the summer monsoons.
The discovery was made in the Taman Peninsula in the southwest of Russia.
Using satellite technology, surveys by Wendorf and University of Colorado Professor, J. April Holloway is a Co-Owner, Editor and Writer of Ancient Origins.
Wendorf made several more visits to the site during the 1970s and 1980s, each time discovering something new.
But it was to be several decades before researchers discovered the dozens of stone structures that are known today, and began to realize the role and importance of these great megaliths.
However, the droughts eventually subsided and, after a 1,000-year hiatus, groups of people began returning to the Playa.
It was from this time onwards, that the region saw the arrival of a substantially more complex and advanced society and it was during this period that most of the major megalithic structures were constructed.