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.Preservation of Bull Semen at Sub-Zero Temperatures by M. E. Friedman et al.Author: VanDemark, N. L.,Language: English, Class: SF: Agriculture: Animal culture, Release Date: Aug 11, 2011