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.Consanguineous Marriages in the American Population by George B. Louis ArnerAuthor: Arner, George B. Louis (George Byron Louis), 1883-1952,Language: English, Class: HQ: Social sciences: The family, Marriage, Sex and Gender, Release Date: Jul 20, 2004