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.
Can you explain the concept of race as a social construct and how it differs from biological race?
Race is a social construct that has been used to categorize humans based on physical characteristics such as skin color, hair texture, and facial features. The idea of race has been used to separate and discriminate against certain groups of people, and has been used to justify oppression and exploitation throughout history.

Biological race, on the other hand, refers to the idea that there are distinct biological differences between human populations. However, scientists generally agree that there is no clear biological basis for race, as genetic differences between individuals are generally much greater than differences between populations. In other words, genetic variation within any given racial group is often greater than genetic variation between different racial groups.

This means that the concept of race as a biological construct is not supported by scientific evidence. Instead, race is a social construct that has been used to create and reinforce social hierarchies based on perceived physical differences. These hierarchies have been used to justify discrimination, oppression, and violence against groups of people who are considered to be different or inferior based on their race.

It is important to recognize the difference between social constructs like race and biological facts. By understanding the social nature of race, we can work towards creating a more just and equitable society that values diversity and respects the human dignity of all people, regardless of their physical appearance or cultural background.