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 Romance of the Colorado River by Frederick Samuel DellenbaughAuthor: Dellenbaugh, Frederick Samuel, 1853-1935,Language: English, Class: F786: United States local history: New Southwest. Colorado River, Canyon, and Valley, Release Date: Aug 1, 2003