How many races are there in classical anthropology, what are they, and where are they located geographically?
Johann Friedrich Blumenbach (1752–1840) divided the human species into five races in 1779, later founded on crania research (description of human skulls), and called them (1793/1795):[18][19]

* the Caucasian or white race. Blumenbach was the first to use this term for Europeans, but the term would later be reinterpreted to also include Middle Easterners and South Asians.
* the Mongolian or yellow race, including all East Asians.
* the Malayan or brown race, including Southeast Asians and Pacific Islanders.
* the Ethiopian or black race, including all sub-Saharan Africans.
* the American or red race, including all Native Americans.

However, the impossibility of drawing clearly defined boundaries between the areas of the supposed racial groups had been observed by Blumenbach and later by Charles Darwin, and with modern genetics, the classical definition of "race" as a biological concept became untenable, as it is impossible to divide people into clear "racial groups", agree upon a common definition of "race", or even determine the number of "races" that exists.