It had to begin when some people noticed that some people were different than other people. When was that beginning? Where was it and who exactly did it? The Encyclopedia Britannica has a section on RACE that does not answer those questions.
Be very, very careful here. There is a connection between race and intelligence but no one knows enough about it to be able to connect the race of a person with their intelligence. The problem has two parts: the Race part and the Intelligence part but there’s no definition of either one that’s good enough to satisfy anyone who knows what they are talking about. Here’s the bottom line. The answer has two parts: the Race part and the Intelligence part but there’s no definition of either one that’s good enough to satisfy anyone who knows what they are talking about. If that makes sense to you, good for you. It doesn’t to me. I suspect it’s a sticks and holes problem with no good idea about what a stick or a hole really is.
Most people can spot the differences between people. The race problem is that the appearances of people are far too unreliable to make a clear test that can seperate people into one race or another. Appearances are used by two or more people every time two or more people meet. Proof is that if you meet Steve you know he’s different than all of the not Steves. Same for Sarah. And that goes for everyone meaning we all know the difference between Sue and Sam but we can’t expand the appearance of Deshawn or Felicia until we get Sue or Sam. About as close as we can get is that no one can describe race but they know it when they see it.
That makes insufficient sense to me but maybe you are better at this stuff. For me I use race when I need it but somehow I don’t seen to need it much or at all. .