Here begins the interesting point in the history of the human brain, the point (and place) of its most important development:

Which brings us neatly to an ape that lived about 14 million years ago in Africa. It was a very smart ape but the brains of most of its descendants - orang-utans, gorillas and chimpanzees - do not appear to have changed greatly compared with the branch of its family that led to us. What made us different?

It used to be thought that moving out of the forests and taking to walking on two legs lead to the expansion of our brains. Fossil discoveries, however, show that millions of years after early hominids became bipedal, they still had small brains.

We can only speculate about why their brains began to grow bigger around 2.5 million years ago... [But] the overall picture is one of a virtuous cycle involving our diet, culture, technology, social relationships and genes. It led to the modern human brain coming into existence in Africa by about 200,000 years ago.

And what a beautiful brain it is. And completely made in Africa. Nowhere else in the known universe but Africa. Europe? No. Asia? No. Only (or to use a wonderful Shona word, chete) the geography of Africa, the skies and clouds of Africa made this brain you all are enjoying right now.