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.Einiges aus der Geschichte der Astronomie im Alterthum by Friedrich BlassAuthor: Blass, Friedrich, 1843-1907,Language: German, Class: QB: Science: Astronomy, Release Date: Apr 28, 2012