Events
1895 - While experimenting with electricity Wilhelm Röntgen discovers X-rays.
Births
1656 (N.S.) - Edmond Halley, British astronomer and mathematician
1854 - Johannes Rydberg, Swedish physicist
1885 - Hans Cloos, German geologist
1922 - Christiaan Barnard, South African heart surgeon
1923 - Jack Kilby, American electrical engineer and Nobel Prize laureate
Deaths
1934 - Carlos Chagas, Brazilian physician
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