January 26th
1630 - Death of Henry Briggs, English mathematician
1697 - Death of Georg Mohr, Danish mathematician
1823 - Death of Edward Jenner, English physician
1904 - Birth of Ancel Keys, American scientist
1911 - Birth of Polykarp Kusch, German-born physicist, Nobel Prize Laureate
1942 - Death of Felix Hausdorff, German mathematician
1943 - Death of Harry H. Laughlin, American eugenicist
1943 - Death of Nikolai Vavilov, Russian botanist
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February 2nd
1522 - Birth of Lodovico Ferrari, Italian mathematician
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March 5th
1575 - Birth of William Oughtred, English mathematician
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The death of Hausdorff was tragic. Someone should have found him a position elsewhere so that he did not feel compelled to remain in Germany.