James Parkinson, English physician and paleontologist (born 1755)

James Parkinson was an English surgeon, apothecary, geologist, palaeontologist, and political activist. He is best known for his 1817 work An Essay on the Shaking Palsy, in which he was the first to describe "paralysis agitans", a condition that was later renamed Parkinson's disease by Jean-Martin Charcot.