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 Sufism of the Rubáiyát, or, the Secret of the Great Paradox by Omar KhayyamAuthor: Omar Khayyam, 1048-1122,Language: English, Class: PK: Language and Literatures: Indo-Iranian literatures, Release Date: Dec 5, 2015