 1703 - Guillaume-François Rouelle born: classification of salts. |
| 1893 - Albert Szent-Györgyi born: isolated ascorbic acid (Vitamin C); bioenergetics, carbohydrate metabolism, and cellular oxidation; Nobel prize (Medicine), 1937. |
| 1910 - Albrecht Kossel born: chemistry of cells and proteins; Nobel prize (Medicine), 1910 |
| 1970 - Great Lakes Chemical Co. incorporated. |
| 1987 - The Montreal Protocol on Substances that deplete the Ozone Layer is signed by 24 nations. |
sources: http://webserver.lemoyne.edu/faculty/giunta/week.html, http://todayinsci.com
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