In 1890, an enterprising physician, Dr. John Kellogg (of corn flakes fame), created peanut butter as a healthy protein substitute that was easy to digest for patients with no teeth. The manufacturing process was mechanized by George A. Bayle, Jr., and a patent for a peanut-butter machine was issued to Abrose W. Straub in 1903. In 1904, peanut butter came into the limelight at the St. Louis Universal Exposition by concessionaire C. H. Sumner, where it was promoted as a health food. When innovative agricultural scientist Dr. George Washington Carver developed an improved version of the butter, it attracted even more enthusiasts.
