The Eugenically Civilizing Effects of Civilization

Peter Frost wrote "The Roman State and Genetic Pacification."
https://journals.sagepub.com/doi/full/10.1177/147470491000800306.

He also wrote, "Western Europe, State Formation, and Genetic Pacification," with Henry Harpending.
https://journals.sagepub.com/doi/full/10.1177/147470491501300114

In these he explained the eugenically civilizing effects of civilization. I am defining a civilization as a city based culture when the government has an effective monopoly on the legitimate use of violence.

Peter Frost said that during the Roman Empire, and again in England from 1200 to 1800 criminals were usually killed at the scene of the crime, they died in custody, or they were executed. The few children some may have had rarely lived to adulthood. Consequently, crime genes were removed from the gene pools of the Roman Empire, and England. As a result, crime rates in both declined.

I discussed Peter Frost's first essay in my American Renaissance essay, "Genetically Tamed?"
https://www.amren.com/features/2013/08/genetically-tamed/

While civilization selects against physical aggressiveness among men, a tribal society selects for it. In a tribal society all men fight in the wars. The best warriors have more than one wife, and consequently more sons who inherit their violent inclinations and skills. In addition, in a tribal society men are expected to avenge wrongs done to themselves, their relatives, and their friends.

This explains why whites and Orientals have lower crime rates than Negroes and Mestizos. It explains why social reform and social welfare spending do not lower crime rates, but raise them instead. A criminal justice system that is effective for the two civilized races is insufficiently harsh for the other races. Before the civil rights movement this was understood in the United States, and especially in the South.