Some civilization has Merit System. Ancient China has Imperial examination through out the history since Han dynasty which is 2000+ years ago, https://en.wikipedia.org/wiki/Imperial_examination.
While India has Caste System for thousands of years.
There is no way the IQ will be the same.
While India has Caste System for thousands of years.
There is no way the IQ will be the same.
high school physics all by myself easily in a few days when I was 14 years old. My English was the second worst among my classmates in middle school.
Some are good at math, some are not.
All men are equal is impossible physiologically nor politically.