Paul-Émile Lecoq de Boisbaudran

Paul-Émile Lecoq de Boisbaudran, also called François Lecoq de Boisbaudran, was a French chemist known for his discoveries of the chemical elements gallium, samarium and dysprosium. He developed methods for separation and purification of the rare earth elements and was one of the pioneers of the science of spectroscopy.

18 April 1838

Born on the same birth day (18 April): Clifton Hillegass • Costas Ferris • David Ricardo • Doug Insole • Edgar Wright • Gabi Delgado-López • Henry II of Navarre • John Podhoretz • Maria Bello • Roger Graef • Sydney Halter • Thomas J. Moyer

Born in the same month (April 1838): John Muir • Léon Gambetta • Tobias Asser