It was on Christmas Day 1865 that Ellen White received the vision for the establishment of the Health Institute that would take care of the sick and also teach her doctrines of preventive medicine. This became the forerunner for the chain of Seventh-Day Adventist medical institutions around the world, health being a major part of the religion. One person there that day was John Harvey Kellogg who would later in life create the Battle Creek Sanitarium where he practiced Whites ideas. His most lasting impact was the development of a healthy food he called Corn Flakes and later became the basis for his breakfast cereal empire.