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.Tin Foil and Its Combinations for Filling Teeth by Henry Lovejoy AmblerAuthor: Ambler, Henry Lovejoy, 1843-1924,Language: English, Class: RK: Medicine: Dentistry, Release Date: Oct 8, 2008