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.Memoranda on the Maya Calendars Used in the Books of Chilan Balam by BowditchAuthor: Bowditch, Charles P. (Charles Pickering), 1842-1921,Language: English, Class: F1401: Latin America local history: General, Release Date: May 12, 2012