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.An Essay on Contagious Diseases by Clifton WintringhamAuthor: Wintringham, Clifton, 1689-1748,Language: English, Class: RC: Medicine: Internal medicine, Release Date: Jun 29, 2015