Medical milestones, landmark publications, and notable births and deaths associated with November 20.

Events

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Births

1869 – Thomas Stephen Cullen (1869-1953), Canadian gynecologist; described Cullen sign (1918)

1909 – Maurice David Sachs (1909-1987), American radiologist; described the Hill-Sachs defect (1940)

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Deaths

1954 – Anna Wessels Williams (1863-1954), American public health physician and bacteriologist. Described the Park-Williams bacillus (1894), Williams stain (1905), and Park-Williams fixative

1997 – John Scott Dunbar (1921-1997), Canadian radiologist; described the Toddler’s fracture

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Further reading