Evolution — The Racism Angle
“At some future period, not very distant as measured by centuries, the civilized races of man will almost certainly exterminate, and replace, the savage races throughout the world. At the same time the anthropomorphous apes, as Professor Schaaffhausen has remarked, will no doubt be exterminated. The break between man and his nearest allies will then be wider, for it will intervene between man in a more civilized state, as we may hope, even than the Caucasian, and some ape as low as a baboon, instead of as now between the Negro or Australian and the gorilla.”
— Charles Darwin
It has long been established that evolution is racist in nature, and has been used to justify racism. This goes back to Darwin's writings as well.
But what happens when one racist-based pseudoscience is used to support another racist-based pseudoscience? Phrenology, was pseudoscience that postulated that the size and shape of the skull indicated levels of intelligence. Although its advocates stumbled across the occasional scientific truth, the field as a whole has been long discredited. Another pseudoscience that allegedly supported phrenology was facial angle. Adding the three pseudosciences of evolutionism, phrenology and facial angle together gave strong "scientific" support for racism. To make matters worse, racist presuppositions were plugged into evolutionary biases.
A measurement technique called facial angle has a history of being used to rank the position of animals and humans on the evolutionary hierarchy. The technique was exploited for several decades in order to prove evolution and justify racism. Extensive research on the correlation of brain shapes with mental traits and also the falsification of the whole field of phrenology, an area to which the facial angle theory was strongly linked, caused the theory’s demise.
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The theory proposes that animal evolutionary history involves a progression from a nearly horizontal facial angle to a vertical one, a transition that was also used to support the evolution of ape-like creatures to humans. Facial angle was also commonly used in classifying other animals from primitive to highly evolved life-forms. Proponents of the facial angle theory hypothesized that facial angle was not only a trend from fish to humans, but could also be used to rank human groups from inferior to superior. It was a “primary instrument of scientific racism”.If you can bring yourself to face the truth, you can read the rest of "Using facial angle to prove evolution and the human race hierarchy", here.