Two questions will receive special attention in this account, namely the political location of eugenics and the role of genetic science in its development. I will show that moderate eugenic policies had broad political support. For instance, the Scandinavian sterilization laws which were introduced in the 1930s were supported by the Social Democratic Parties, who were partly in position of government. I will argue that the effect of genetic research was to make eugenics more moderate, mainly because the fears and hopes were shown to be exaggerated. Degeneration was much slower than feared at first, if it took place at all, and the expectation of rapid and large effects of eugenic policies on the gene pool likewise proved to be quite unrealistic.

It may be thought that the title of this paper betrays a regrettable lack of sensitivity and good taste; it is as well, therefore, to explain its origin. Lewis Dexter was, I think, the first sociologist to apply a deviance perspective to the high-grade mentally retarded. ‘On the Politics and Sociology of Stupidity in Our Society’ argues that our discriminatory attitudes to the retarded have deep ideological roots; our social institutions tend ‘automatically’ to penalize stupidity; and repugnance often characterizes our face-to-face interactions with the stupid. The pejorative label ‘stupid’ was justified precisely because identifying the stupid is a ‘commonsense’ rather than a scientific process, although commonsense does not have long to wait before it is bolstered by science.