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.Salvador of the Twentieth Century by Percy F. MartinAuthor: Martin, Percy F. (Percy Falcke), 1861-1941,Language: English, Class: F1481: Latin America local history: El Salvador, Release Date: Mar 9, 2014