 1886 - Robert Robinson born: plant pigments, phenanthrene derivatives, and alkaloids; Nobel Prize, 1947. |
| 1887 - Leopold W. G. Ruzicka born: cyclic polymethylenes, terpenes; synthesis of sex hormones; Nobel Prize, 1939. |
| 1894 - Dorothy Maud Wrinch born: structure of proteins. |
| 1937 - Polaroid incorporated. |
| 1945 - Burris Cunningham and Louis Werner isolated first microscopic amount of a compound of americium (Am, element 95) at wartime Metallurgical Laboratory, University of Chicago. |
sources: http://webserver.lemoyne.edu/faculty/giunta/week.html, http://todayinsci.com
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