The Apportionment of Human Diversity
"The Apportionment of Human Diversity" is a 1972 paper on racial categorisation by American evolutionary biologist Richard Lewontin. In it, Lewontin presented an analysis of genetic diversity amongst people from different conventionally-defined races. His main finding, that there is more genetic variation within these populations than between them, is considered a landmark in the study of human genetic variation and contributed to the abandonment of race as a scientific concept.