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.Guelfos e Gibelinos: Tentativa critica sobre a actual polemica litteraria by VidalAuthor: Vidal, Eduardo Augusto, 1841-1907,Language: Portuguese, Class: PQ: Language and Literatures: Romance literatures: French, Italian, Spanish, Portuguese, Release Date: Jun 18, 2010