Complex sentence: William Worrall Mayo (May 31,1819--March 6,1911) was a British-American medical doctor and chemist, best known for establishing the private medical practice that later evolved into the Mayo Clinic.
Split into simpler sentences: William Worrall Mayo (May 31,1819--March 6,1911) was a British-American medical doctor and chemist. He is best known for establishing the private medical practice that later evolved into the Mayo Clinic.