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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.The Second Story of Meno by UnknownAuthor: Unknown,Language: English, Class: QA: Science: Mathematics, Release Date: Jul 9, 2008

《Der Kalendermann vom Veitsberg: Eine Erz?hlung für das Volk》
《Busy Ben and Idle Isaac》
《Lippincott‘s Magazine of Popular Literature and Science, Volume 26, July 1880.》
《A Syrup of the Bees》
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