 1844 - Horace Wells, dentist, first used nitrous oxide as an anesthetic. |
| 1855 - Charles Frederick Cross born: rayon manufacture, cellulose and papermaking. |
| 1882 - Max Born born: quantum mechanics; interpretation of the wavefunction (Born interpretation); Born-Oppenheimer approximation in molecular quantum mechanics; Nobel Prize (physics), 1954. |
| 1925 - Paul Greengard born: biochemical action of dopamine and other neurotransmitters; Nobel Prize (Medicine), 2000. |
| 1947 - Vitamin B12 isolated by Merck, Sharp & Dohme Research Laboratories. |
sources: http://webserver.lemoyne.edu/faculty/giunta/week.html, http://todayinsci.com
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