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.The Yellowstone National Park: Historical and Descriptive by ChittendenAuthor: Chittenden, Hiram Martin, 1858-1917,Language: English, Class: F721: United States local history: Rocky Mountains. Yellowstone National Park, Release Date: Feb 17, 2013