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.Rambles in the Mammoth Cave, during the Year 1844 by Alexander Clark BullittAuthor: Bullitt, Alexander Clark, 1807-1868,Language: English, Class: F396: United States local history: Old Southwest. Lower Mississippi Valley, Release Date: Jul 6, 2005