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.Earth and Sky Every Child Should Know by Julia Ellen RogersAuthor: Rogers, Julia Ellen, 1866-,Language: English, Class: QE: Science: Geology, Release Date: May 30, 2010