In 1986, McGraw–Hill bought out competitor The Economy Company, then the United States' largest publisher of educational material. In 1979, McGraw–Hill purchased Byte magazine from its owner/publisher Virginia Williamson, who then became a vice-president of McGraw–Hill. McGraw–Hill purchased credit rating agency Standard & Poor's from Paul Talbot Babson in 1966. In 1964, after Hill died, both McGraw–Hill Publishing Company and McGraw–Hill Book Company merged into McGraw–Hill, Inc. In 1917, the remaining parts of each business were merged into The McGraw–Hill Publishing Company. John Hill served as president, with James McGraw as vice-president. In 1909 both men, having known each other's interests, agreed upon an alliance and combined the book departments of their publishing companies into The McGraw–Hill Book Company. Hill had also produced several technical and trade publications and in 1902 formed his own business, The Hill Publishing Company. He continued to add further publications, eventually establishing The McGraw Publishing Company in 1899. McGraw purchased the American Journal of Railway Appliances. The predecessor companies of S&P Global have history dating to 1888, when James H.
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