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http://echo.gmu.edu/
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The Gilder Lehrman Institute of American History . Home
Institute promotes the study of American history. Includes a collection of American historical documents for teachers, historians, students, and public.
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World Digital Library Home
The World Digital Library will make available on the Internet, free of charge and in multilingual format, significant primary materials from cultures around the ...
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World-Mysteries.com
World-Mysteries.com. Explore with us lost civilizations, ancient ruins, sacred ... By shopping online you will support the ongoing work of the World-Mysteries.com. ...
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smarthistory
Free multimedia web-book designed as a dynamic enhancement (or even substitute) for the traditional and static art history textbook.
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World-Mysteries.com
Explores lost civilizations, ancient ruins, sacred writings, unexplained artifacts, and science mysteries.
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the history of computing project
history of computing, computerhistory, history of computers
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The National Academies: Advisers to the Nation on Science, Engineering, and Medicine
Private, nonprofit society of scholars engaged in scientific and engineering research, dedicated to the furtherance ... the National Academies. Directories ...
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The Why Files | The Science Behind the News
Illuminates the science, math, and technology lurking behind the headline news.
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ScienceWorld
Comprehensive online encyclopedias of astronomy, math, physics, scientific biographies, and scientific books, with many equations and formulas.
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The Secret Life Of Machines Home Page
Drawings and explanations to common machines and how they work. ... contact us. Enter your search terms. Submit search form. Web. www.secretlifeofmachines.com ...
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