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Births
1891 – Wilder Penfield, American-born Canadian neurosurgeon
1904 – Ancel Keys, American scientist
1911 – Polykarp Kusch, German-born physicist and Nobel Prize laureate
Deaths
1823 – Edward Jenner, English physician
1943 – Harry H. Laughlin, American eugenicist
1946 – Adriaan van Maanen, Dutch-American astronomer