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.The Atomic Bombings of Hiroshima and NagasakiAuthor: United States. Army. Corps of Engineers. Manhattan District,Language: English, Class: D731: History: General and Eastern Hemisphere: World War II (1939-1945), Release Date: Oct 1, 1996