births
Joseph Achille Le Bel, French chemist (died 1930)
Related Wikipedia articles
Joseph Achille Le Bel
French chemist (1847-1930)
Joseph Achille Le Bel was a French chemist. He is best known for his work in stereochemistry. Le Bel was educated at the École Polytechnique in Paris. In 1874 he announced his theory outlining the relationship between molecular structure and optical activity. This discovery laid…Source: Wikipedia (CC BY-SA)
January 21
Day of the year
January 21 is the 21st day of the year in the Gregorian calendar; 344 days remain until the end of the year.Source: Wikipedia (CC BY-SA)