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(DPLA) is an all-digital library that aggregates metadata — or information describing an item — and thumbnails for millions of photographs, manuscripts, books, sounds, moving images, and more from libraries, archives, and museums across the United States.
The National Science Foundation (NSF) is an independent federal agency created by Congress in 1950 "to promote the progress of science; to advance the national health, prosperity, and welfare; to secure the national defense…"