The following links provide general knowledge of the country's rich history and past. They are also are valuable primary resources useful for research.
The National Archives and Records Administration (NARA) is an independent federal agency that preserves the nation's history and oversees the management of all federal records. A few important links are:
These are not traditional libraries, but repositories for preserving and making available the papers, records, and other historical materials of American Presidents since Herbert Hoover. (From the National Archives)
Founded in 1846, the Smithsonian is the world's largest museum and research complex, consisting of 19 museums and galleries, the National Zoological Park, and nine research facilities.
"Smithsonian Institution Libraries is the most comprehensive museum library system in the world, supporting the vital research of the Smithsonian, as well as the work of scientists and scholars from around the world."