McGraw-Hill was founded in 1888 by James McGraw and John Hill, and 100 years later it was the largest educational publisher in the United States. But as with many traditional publishers, that success eroded in the digital age. By 2013, when it was clear the business of publishing printed textbooks had no future, the McGraw-Hill Companies, now S&P Global, sold McGraw-Hill Education to Apollo Global Management for $2.4 billion.