Data gathered from 4,000 boys across the US revealed that, on average, white and Hispanic boys go through puberty around the age of ten, while the average age is nine for black boys.
the American Academy of Pediatrics… studied 17,000 girls and found that the average age of breast-budding among white girls was 9.9 years while for black girls it was 8.8
There have been several articles written recently over how boys and girls have been showing signs of puberty earlier than before. Particularly interesting is that there is variation between the races. Of course we are told that race is merely a social construct and has no biological significance whatsoever. So according to the race is a social construct model, we as a society must be imposing expectations on black children to reach puberty sooner, imposing expectations on white, Hispanic and Asian children to reach it later or some mixture of both.
It seems evident to me that a rational person divorced from political correctness would see this difference for what it is. A biological difference between groups of humans that evolved in different geographies. To date I have not heard an alternate explanation put forth by the race equals a social construct side.
Note: I am not arguing for anything like superiority of the races or special treatment or any such nonsense. I am only concerned with the subject as it relates to the diversity of humanity. I am also concerned that political correctness ignores the genuine science of race differences and could lead to chaos and hostility in society.