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The Green Sahara - The African Humid Period
The major shifts associated with the green sahara began around 11 thousand 700 years ago, though in some regions they started a few thousand years earlier than that. The period had come to an end by forty 200 years ago, the four point two cilier aredification event we've talked about before in mesopotamia and the indis valley. Parts of the sahara had grown much drier long before then, forcing adaptations or migrations among their inhabitants. Some models come closer than others to predicting the actual kinds of landscapes we see today. But none has yet fully explained how and why the african humid period functioned precisely how it did.