I find it ironic that as each 'modern' generation in their turn, add their contribution to the sum total of humanity's accumulated wisdom, they also tend to ignore/discount the knowledge passed down by earlier generations. The recent politically correct excitement over mankind's African origins is just such an example, with these 'newly discovered facts' being loudhailered under banner headlines such as 'We're all Africa's children now!'.
It might interest the writer of that article to hear that more than 4,000 years ago, the ancient Sumerian's also believed exactly that; and recorded for posterity on clay tablets an incredibly detailed picture of mankind's earliest origins in southern Africa. Along with a great deal more historical information from that long distant time, these ancient writings explain the reasons why mankind began life in Africa, when/how it happened; and also why humanity began the migrations north, which ultimately resulted in the population of the entire planet. The ancient Babylonian's and Egyptian's also accepted these Sumerian teachings so firmly that as time passed, they developed into the earliest recorded religions.
This Sumerian origin for mankind's earliest organised religious belief isn't just an ancient historical irrelevance either; because the Sumerian city of Ur was the birthplace of Abraham, who became patriarch of the Hebrew tribes. Later Moses recorded the history/religion of the Jewish people in what became known to us today as the 'Pentarch' or first five books of the Bible; which was the basis of first Christianity, and later the Islamic faith. What Moses so dilligently recorded however, was a three hundred year old memory of that early faith brought from Sumeria by Abraham; with the inevitable changes/omissions caused by the time and distances involved.
The writer/scholar Zecharia Sitchin has spent a lifetime translating these ancient Sumerian writings, and the original record is now available. To the modern eye, these incredible tales from the distant past are shockingly understandable. One graphic example is the legend of Lot's wife, turned to a pillar of salt by God, for looking back on the destruction of Sodom, Gomorrah and the cities of the plain. Mr Sitchin explains in Book III 'The Earth Chronicles', that the Sumerian word for salt and mist/vapour was identical:- 'NIMUR'; as they gathered their salt from misty swampy salt pans near the Persian Gulf. Thus the legend should read that Lot's wife was turned to a pillar/column of vapour by God's power/anger as she looked back on the destruction of the cities. IE:- She was caught in the flash of an almighty explosion and vapourised!!! This event is covered in detail on pages 310-342 of Book III.
If Mr Sitchin's translations are accurate, and to date his work has not been discredited by any of those qualified to do so; humanity most certainly originated in southern Africa, but modernday historian/archaeologists still have some shocks to come as they rediscover the full story.