Analysis of the content of medical journals enables us to frame the shifting scientific, material, ethical, and epistemic underpinnings of medicine over time, including today. Leveraging a dataset comprised of nearly half-a-million articles published in the Journal of the American Medical Association (JAMA) and the New England Journal of Medicine (NEJM) over the past 200 years, we (a) highlight the evolution of medical language, and its manifestations in shifts of usage and meaning, (b) examine

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... traces of the medical profession's changing self-identity over time, reflected in its shifting ethical and epistemic underpinnings, (c) analyze medicine's material underpinnings and how we describe where medicine is practiced, (d) demonstrate how the occurrence of specific disease terms within the journals reflects the changing burden of disease itself over time and the interests and perspectives of authors and editors, and (e) showcase how this dataset can allow us to explore the evolution of modern medical ideas and further our understanding of how modern disease concepts came to be, and of the retained legacies of prior embedded values. Editor's evaluation This work analyzed more than half a million peer-reviewed articles published in two high-impact medical journals. It provides insights into the evolution of medical practice, language, and values over the past two centuries. Thus, it helps us contextualize our understanding of change in medicine and medical beliefs over time.