>>1674885"In Nordic populations the women are, in general, lighter haired than the men, a fact which points to a blond past and a darker future for those populations. Women in all human races, as the females among all mammals, tend to exhibit the older, more generalized and primitive traits of the race's past. The male in his individual development indicates the direction in which the race is tending under the influence of variation and selection."
Madison Grant- The Passing of the Great Race; Or, The Racial Basis of European History