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.Federal Bureau of Investigation FOIA Documents - Unidentified Flying ObjectsAuthor: United States. Federal Bureau of Investigation,Language: English, Class: TL: Technology: Motor vehicles, Aeronautics, Astronautics, Release Date: Jun 5, 2008