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.Castillo de San Marcos by United States. National Park ServiceAuthor: ,Language: English, Class: F296: United States local history: Gulf States. West Florida, Release Date: Nov 25, 2017