Events
1936 - Radium E becomes the first radioactive element to be made synthetically.
Births
1725 - Dru Drury, English entomologist
1778 - A. P. de Candolle, Swiss botanist
1846 - Nikolay Umov, Russian physicist
1875 - Ludwig Prandtl, German physicist
1896 - Friedrich Hund, German physicist
1906 - Clyde Tombaugh, American astronomer
Deaths
1615 - Giovanni Battista della Porta, Italian physicist
1928 - Hendrik Lorentz, Dutch physicist and Nobel Prize laureate
1974 - Satyendra Nath Bose, Indian physicist
1987 - Carl Rogers, American psychologist
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