Adolphe Quételet was a Belgian astronomer, mathematician, and sociologist. He interpreted the "statistical" information being gathered by modern states, especially the work of the great French mathematician
Joseph Fourier in Paris, as evidence that some phenomena like marriages were being determined by an unknown law.
Decades earlier,
Immanuel Kant had argued for such an interpretation. in his
Idea for a Universal History with a Cosmopolitan Intent. Kant called for study of the statistical regularities of social data on births, deaths, and marriages.
No matter what conception may form of the freedom of the will in metaphysics, the phenomenal appearances of the will, i.e., human actions, are determined by general laws of nature like any other event of nature. History is concerned with telling about these events. History allows one to hope that when history considers in the large the play of the freedom of human will, it will be possible to discover the regular progressions thereof. Thus (it is to be hoped) that what appears to be complicated and accidental in individuals, may yet be understood as a steady, progressive, though slow, evolution of the original endowments of the entire species.
(Kant, Idea for a Universal History, 1784)
In the 1820's, Fourier noticed that statistics on the number of births, deaths, marriages, suicides, and various crimes in the city of Paris had remarkably stable averages from year to year. The mean values in a "normal distribution" (one that follows the bell curve or "law of errors") of statistics took on the prestige of a social law. Quételet did more than anyone to claim these statistical regularities were evidence of
in human affairs.
