colonization of the body, by 1883

"'In the brief period of less than fifty years,' N. S. Davis, president of the American Medical Association, told his colleagues in 1883, 'we have specialists for almost every part or region of the human body.'"

-- The Culture of Professionalism: The Middle Class and the Development of Higher Education in America, Burton J. Bledstein, 1976, p. 85.