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 System of Nature, or, the Laws of the Moral and Physical World. Volume 1Author: Holbach, Paul Henri Thiry, baron d', 1723-1789,Language: English, Class: B: Philosophy, Psychology, Religion, Release Date: Sep 1, 2005