Michel Eugène Chevreul, French chemist and academic (b. 1786)
Michel Eugène Chevreul (31 August 1786 – 9 April 1889) was a French chemist whose work influenced several areas in science, medicine, and art. His early work with animal fats revolutionized the manufacture of soap and of candles and led to his isolation of the heptadecanoic (margaric), stearic, and oleic fatty acids. In the medical field, he was first to demonstrate that diabetics excrete glucose in the urine and to isolate creatine. He lived to 102 and was a pioneer in the field of gerontology. His theories of color "provided the scientific basis for Impressionist and Neo-Impressionist painting." He is one of the 72 French scientists, mathematicians, and engineers whose names are inscribed on the Eiffel Tower; of those 72, 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).
1889Apr, 9
Michel Eugène Chevreul
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Events on 1889
- 8Jan
Punched card
Herman Hollerith is issued US patent #395,791 for the 'Art of Applying Statistics' — his punched card calculator. - 30Jan
Mayerling Incident
Archduke Crown Prince Rudolf of Austria, heir to the Austro-Hungarian crown, is found dead with his mistress Baroness Mary Vetsera in the Mayerling. - 23Mar
Mirza Ghulam Ahmad
The Ahmadiyya Muslim Community is established by Mirza Ghulam Ahmad in Qadian, British India. - 2May
Treaty of Wuchale
Menelik II, Emperor of Ethiopia, signs the Treaty of Wuchale, giving Italy control over Eritrea. - 6May
Exposition Universelle (1889)
The Eiffel Tower is officially opened to the public at the Universal Exposition in Paris.