Project Gutenberg was the first provider of free electronic books, or eBooks. Michael Hart, founder of Project Gutenberg, invented eBooks in 1971 and his memory continues to inspire the creation of eBooks and related technologies today.Ferdinand Vandiveer Hayden and the Founding of the Yellowstone National ParkAuthor: Geological Survey (U.S.),Language: English, Class: F721: United States local history: Rocky Mountains. Yellowstone National Park, Release Date: Jan 29, 2015