James Parkinson is commonly known as the man who first identified and described "paralysis agitans" or Parkinson's disease in 1817. Since then, the term "Parkinson's disease" has become synonymous with James Parkinson himself. Other synonyms often used for James Parkinson include medical practitioner, physician, and neurologist. Additionally, Parkinson's groundbreaking works on medicine, chemistry, geology, and fossils have earned him the titles of scientist, writer, and researcher. As a legacy, his name has become a household name used to describe the degenerative condition, and his contribution to medical sciences remains unparalleled despite being centuries old.