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.Mentally Defective Children by Alfred Binet and Théodore SimonAuthor: Simon, Théodore, 1873-,Language: English, Class: LC: Education: Special aspects of education, Release Date: Jun 18, 2011