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.Yellowstone and Grand Teton National Parks by Union Pacific Railroad CompanyAuthor: Union Pacific Railroad Company,Language: English, Class: F721: United States local history: Rocky Mountains. Yellowstone National Park, Release Date: Jul 15, 2014