For anyone else not sure what phrenology is, the article says: > In the early 19th century, some scientists became convinced that they could predict someone's

For anyone else not sure what phrenology is, the article says: > In the early 19th century, some scientists became convinced that they could predict someone's personality and behaviour based simply on the shape of their head. > Known as phrenology, this pseudo-science accelerated notions of racism, intellectual superiority, and caused many to suffer just because of what they looked like—some people were even imprisoned because the contours of their skulls suggested "criminality."