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Provides free and open access through the Internet to written and spoken words, sound recordings, still and moving images, prints, maps, and sheet music that document the American experience.
Historic Cities contains maps, literature, documents, books and other relevant material concerning the past, present and future of historic cities and facilitates the location of similar content on the web.
Provides interactive and animated representations of fundamental historical problems and/or illustrations of historical events, developments and dynamics. (University of Oregon)