Most histories of mathematics devote only a few pages to Ancient Egypt and to northern Africa during the 'Middle Ages'. They generally ignore the history of mathematics in Africa south of the Sahara and give the impression that this history either is not knowable, traceable, or, that there was no mathematics at all south of the Sahara. In history, to Europeans, even the Africanity of Egyptian mathematics is often denied.
Neuroscientists have used a classic branch of maths in a totally new way to peer into the structure of our brains. What they've discovered is that the brain is full of multi-dimensional geometrical structures operating in as many as 11 dimensions.