[commandlinefan]

> different race, in general, have different culture, values, and strengths

The coarse divisions that we call "race" don't help much here, either - there's a lot of variance between different groups of asians as well as different groups of whites (think of how different italians are from irish). The way we're lumped together is actually very arbitrary (and changes depending on how the lumpers are trying to score political points).

[dqpb]

According to this article, African Americas have been separated from their indigenous continent long enough that they are now their own distinct race.

[PubliusMI]

Are the divisions arbitrary if they are reflected in objective measures of athleticis and scholastics?

[genera1]

Neither athletic nor scholastic performance are objective measures. Sports are contests of arbitrary skills, that on the highest level require time intensive and expensive commitment since basically childhood, and whatever method you choose to measure scholastic performance with it's never going to be free of class/geographic/cultural factors.