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.Liberation: Marines in the Recapture of Guam by Cyril J. O'BrienAuthor: O'Brien, Cyril J., 1919-2011,Language: English, Class: D731: History: General and Eastern Hemisphere: World War II (1939-1945), Release Date: May 27, 2015