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 Solution of the Pyramid Problem; or, Pyramid Discoveries by Robert BallardAuthor: Ballard, Robert,Language: English, Class: DT: History: General and Eastern Hemisphere: Africa, Release Date: Jun 26, 2012