the library of alexandria

the library of alexandria

13 The Frailty of Knowledge Sagan on the Library of Alexandria, Hypatia Carl Sagan Tribute Series 2 2

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@Xingweiinc: I liked a @YouTube video http://t.co/lugRVkJN7Q 13 The Frailty of Knowledge Sagan on the Library of Alexandria, Hypatia Carl Sagan