John Harvey Kellogg (February 26, 1852 – December 14, 1943) was an American medical doctor, nutritionist, inventor, health activist, eugenicist, and businessman. He was the director of the Battle Creek Sanitarium in Battle Creek, Michigan. The sanitarium was founded by members of the Seventh-Day Adventist Church. It combined aspects of a European spa, a hydrotherapy institution, a hospital and high-class hotel. Kellogg treated the rich and famous, as well as the poor who could not afford other hospitals. Several popular misconceptions falsely attribute various cultural practices, inventions, and historical events to Kellogg.