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 Política de los Estados Unidos en el Continente Americano by Cárdenas y EcharteAuthor: Cárdenas y Echarte, Raúl de, 1884-1979,Language: Spanish, Class: E151: History: America: United States, Release Date: Apr 27, 2014