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 Black Death in the Fourteenth Century by J. F. C. HeckerAuthor: Hecker, J. F. C. (Justus Friedrich Carl), 1795-1850,Language: English, Class: RC: Medicine: Internal medicine, Release Date: Jun 26, 2016