René Laennec, French physician, invented the stethoscope (d. 1826)
René-Théophile-Hyacinthe Laennec

(French: [laɛnɛk]; 17 February 1781 – 13 August 1826) was a French physician and musician. His skill at carving his own wooden flutes led him to invent the stethoscope in 1816, while working at the Hôpital Necker. He pioneered its use in diagnosing various chest conditions.

He became a lecturer at the Collège de France in 1822 and professor of medicine in 1823. His final appointments were that of head of the medical clinic at the Hôpital de la Charité and professor at the Collège de France. He died of tuberculosis in 1826 at age 45.