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): Aleksanteri Aava • Carlos Manuel de Céspedes • Clarence "Gatemouth" Brown • Eric McCormack • Gabi Delgado-López • George H. Hitchings • James McCune Smith • Jeff Dunham • Keiko Abe • Michael D. Higgins • Mika Zibanejad • Niall Ferguson • Pigmeat Markham • Sydney Halter • Thomas J. Moyer • William Debenham • Wojciech Szczęsny

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