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.Historia de los Judíos en Espa?a by Adolfo de CastroAuthor: Castro, Adolfo de, 1823-1898,Language: Spanish, Class: DS: History: General and Eastern Hemisphere: Asia, Release Date: Oct 27, 2010