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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.Harper's Young People, November 23, 1880 by VariousAuthor: Various,Language: English, Class: AP: General Works: Periodicals, Release Date: Aug 10, 2013

《Treasures in Heaven》
《Perfumes and Their Preparation》
《The Girl‘s Own Paper, Vol. XX. No. 1004, March 25, 1899》
《Ski-running》
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