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.La transformación de las razas en América by Agustín AlvarezAuthor: Alvarez, Agustín, 1857-1914,Language: Spanish, Class: F1401: Latin America local history: General, Release Date: Oct 18, 2008