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.Ecology of the Opossum on a Natural Area in Northeastern Kansas by Henry S. Fitch et al.Author: Sandidge, Lewis L.,Language: English, Class: QH: Science: Natural history, Release Date: Aug 24, 2011