Michel Eugène Chevreul (31 August 1786 – 9 April 1889) was a French chemist whose work with fatty acids led to early applications in the fields of art and science. He is credited with the discovery of margaric acid, creatine, and designing an early form of soap made from animal fats and salt. He lived to 102 and was a pioneer in the field of gerontology. He is also one of the 72 people whose names are inscribed on the Eiffel Tower; of those 72 scientists and engineers, Chevreul was one of only two who were still alive when Gustave Eiffel planted the French Tricolor on the top of the tower on 31 March 1889 (the other being Hippolyte Fizeau) and was the last living individual born before the French Revolution.
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