#OnThisDay, 7 Jan 1939, French physicist Marguerite Perey discovers element 87, which she later names francium. It was the last element to be discovered naturally.
Perey was a student of Maria Skłodowska-Curie. She was nominated five times for the Nobel Prize but never received it.
#WomenInSTEM #ScienceHistory #WomenInHistory #OTD #History #WomensHistory #Histodons
