Sir James Young Simpson, 1st Baronet (7 June 1811 – 6 May 1870) was a Scottish and an important figure in the history of medicine. Simpson discovered the anaesthetic properties of chloroform and successfully introduced it for general medical use.

Sir James Young Simpson, 1st Baronet (7 June 1811 – 6 May 1870) was a Scottish and an important figure in the history of medicine. Simpson discovered the anaesthetic properties of chloroform and successfully introduced it for general medical use.