Andrew Taylor Still, born on August 6, 1828, and died on December 12, 1917, was an American physician and medical reformer. He is considered the founder of osteopathy, a system of medicine that emphasizes manual manipulation of the musculoskeletal system.
Source: Autobiography of Andrew T. Still: With a History of the Discovery and Development of the Science of Osteopathy, Together with an Account of the Founding of the American School of Osteopathy