The evolution of the intelligence of man is based on the myth that there is a relationship between cranial capacity and intelligence. In the nineteenth century, scientists used inaccurate data to prove that racial, sexual and class Inferiority was due to "low" cranial capacity. However, no matter if one refers to cranial capacity per se, brain weight, or brain-body ratio, the evidence shows that all fossil hominids possess either an ape or human cranial capacity with no data to support human evolution from an ape-size brain ancestry.