Michel Eugène Chevreul died on 1889-04-09.

Michel Eugène Chevreul was born on 1786-08-31.

France. Michel-Eugene Chevreul founded op art in 1839.

French chemist by the name of Michel Eugène Chevreul and he made the first lump of soap in 1800

From Wikipedia: During the 19th century, scientist-writers such as Michel Eugène Chevreul, Ogden Rood and David Sutter wrote treatises on color, optical effects and perception. They were able to translate the scientific research of Helmholtz and Newton into a written form that was understandable by non-scientists. Chevreul was perhaps the most important influence on artists at the time; his great contribution was producing the color wheel of primary and intermediary hues.