Against the Grain: A Deep History of the Earliest States

by James C. Scott

Nonsedentary populations typically limit their reproduction deliberately. The logistics of moving camp regularly make it burdensome, if not impossible, to have two infants who must be carried at the same time. As a result, the spacing of children of hunter-gatherers is on the order of four years, a spacing that is achieved by delayed weaning, abortifacients, and neglect or infanticide. Furthermore, some combination of strenuous exercise with a lean and protein-rich diet meant that puberty arrived later, ovulation was less regular, and menopause arrived earlier. Among sedentary agriculturalists, by contrast, the burden of a much shorter spacing of children as experienced by mobile foragers is much reduced and, as we shall see, the greater value of the children as a labor force in agriculture is enhanced. By virtue of sedentism, menarche is earlier; with a grain diet, infants can be weaned earlier on soft foods; and by virtue of a high-carbohydrate diet, ovulation is encouraged and a woman’s reproductive life is extended.