deaths
Marguerite Perey, French physicist (born 1909)
Related Wikipedia articles
Marguerite Perey
20th-century French physicist
Marguerite Catherine Perey was a French physicist and a student of Marie Curie. In 1939, Perey discovered the element francium by purifying samples of lanthanum that contained actinium. In 1962, she was the first woman to be elected to the French Académie des Sciences, an honor…Source: Wikipedia (CC BY-SA)
May 13
Day of the year
May 13 is the 133rd day of the year in the Gregorian calendar; 232 days remain until the end of the year.Source: Wikipedia (CC BY-SA)