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.New and Original Theories of the Great Physical Forces by Henry Raymond RogersAuthor: Rogers, Henry Raymond, 1822-1901,Language: English, Class: QC: Science: Physics, Release Date: Mar 20, 2008