Niels Ryberg Finsen (1860-1904), Danishphysician and 1903 Nobel Prize winner who made important discoveries regarding the use of light waves in the treatment of disease.
... USA
Births:
January 5 - Jeane Dixon[?], astrologer (+ 1997)
January 10 - Ray Bolger, actor, singer, dancer (+ 1987)
January 18 - Cary Grant, actor (+ 1986)
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