Who is known for classifying races based on cranial capacity?

Samuel George Morton is known for classifying races based on cranial capacity, which he believed was related to intelligence and racial superiority. Morton conducted extensive research on the skull sizes of different racial groups in the 19th century. He measured and compared the cranial volumes, concluding that there were significant differences between races that he argued justified a hierarchy among them. Morton's work has been critically examined and debunked through modern anthropology, but it played a significant historical role in early racial classification theories. His approach is a prime illustration of how pseudoscientific methods were used to support racial distinctions during that time period.