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.Tumacacori National Monument, Arizona by United States. National Park ServiceAuthor: ,Language: English, Class: F786: United States local history: New Southwest. Colorado River, Canyon, and Valley, Release Date: May 11, 2019