René Laennec - Wikipedia, the free encyclopedia

René-Théophile-Hyacinthe Laennec[1] (French: [laɛnɛk]; 17 February 1781 – 13 August 1826) was a French physician. He invented the stethoscope in 1819, while working at the Hôpital Necker, and pioneered its use in diagnosing various chest conditions.