Scientists have pinpointed the homeland of all humans alive today to a region south of the Zambesi River in Bostwana.
The area is now dominated by salt pans, but was once home to an enormous lake, which may have been our ancestral heartland 200,000 years ago.
After staying there for 70,000 years, our ancestors began to move on.
shifts in rainfall across the region led to three waves of migration 130,000 and 110,000 years ago, driven by corridors of green fertile land opening up.
The first migrants ventured North-East, followed by a second wave of migrants who travelled South-West and a third population remained in the homeland until today..
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