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 Pony Rider Boys in the Grand Canyon; Or, The Mystery of Bright Angel GulchAuthor: Patchin, Frank Gee, 1861-1925,Language: English, Class: PZ: Language and Literatures: Juvenile belles lettres, Release Date: Jul 22, 2004