The History of Memory Techniques Leading to Mind Maps

“Since human beings first walked planet Earth, memory has been one of the main concerns and interests. If early homo sapiens forgot, it was not only a matter of not remembering, it was often a matter of no longer living: if you could not remember which snakes were poisonous; which fruit was nutritious; where you had hidden your implements and weapons; where swamps, quick-sands and chasms were located; and where your secret supplies of food were, you did not get many more opportunities to try to remember anything!”