As a young doctor in the mid-1800s, Andrew Taylor Still cared for sick and injured people on the frontier and on the battlefields of the Civil War. His experiences led him to believe that the common medical practices of the day often did more harm than good. After intense study, he developed a new medical treatment model, osteopathic medicine. Founded in 1874 by Dr. Still, his philosophy of medicine concentrated on the whole person—mind, body and spirit. He regarded the body as an integrated whole rather than treating specific symptoms or illness. Osteopathic medicine of the 19th century focused on a healthy lifestyle and was an alternative to mainstream medical practices of the time that relied on dosing with poisons, bleeding and drugging. In 1892, Dr. Still opened his first school of osteopathy for both men and women in Kirksville, Missouri—now called A. T. Still University. Celebrating 125 years, osteopathic medicine is now practiced in all 50 states and 100 nations worldwide. Jason Haxton, director of the Museum of Osteopathic Medicine, will highlight the life of Andrew Taylor Still and his impact on modern medical practice.