 1709 - Andreas S. Marggraf born: isolated zinc from calamine; flame test to distinguish potash from soda; found alumina in clay; found beet sugar (sucrose) in beet root. |
| 1860 - Aleksei E. Favorskii born: organic chemistry; acetylene, isoprene, alcohols; Favorskii rearrangement. |
| 1862 - Louis Pasteur and Claude Bernard initiate a test of the idea of pasteurization by heating blood and urine in sealed flasks. The result of no observed fermentation or decomposition after 50 days supported the possibility of heating foods sufficiently to kill germs without significantly altering their chemical composition. |
| 1876 - Gregory P. Baxter born: determination of atomic weight of lead led to dating of minerals. |
| 1879 - Elmer V. McCollum born: vitamin D, nutrition and growth. |
| 1894 - Aleksandr Ivanovich Oparin born: chemical evolution and the origin of life on earth. |
| 1918 - Arthur Kornberg born: synthetic pathways for the production of nucleic acids; Nobel Prize (Medicine), 1959. |
| 1923 - Frank B. Colton born: invented first oral contraceptive, Enovid. |
sources: http://webserver.lemoyne.edu/faculty/giunta/week.html, http://todayinsci.com
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