This page provides a simple index of American reference, archive, legal, legislative, cultural, and historical research sites. These links emphasize primary sources, public records, official government publications, preserved documents, and historically verifiable research collections.
When using these sources for historical writing, compare primary documents against later interpretations, note the date of publication or revision, and distinguish official records from commentary or educational summaries.
American Presidency Project. (n.d.). The American Presidency Project. University of California, Santa Barbara. https://www.presidency.ucsb.edu/
Census Bureau. (n.d.). Data and maps. U.S. Department of Commerce. https://www.census.gov/data.html
Digital Public Library of America. (n.d.). Digital Public Library of America. https://dp.la/
Federal Register. (n.d.). Federal Register. National Archives and Records Administration & U.S. Government Publishing Office. https://www.federalregister.gov/
GovInfo. (n.d.). GovInfo. U.S. Government Publishing Office. https://www.govinfo.gov/
HathiTrust. (n.d.). HathiTrust Digital Library. https://www.hathitrust.org/
Internet Archive. (n.d.). Internet Archive. https://archive.org/
Library of Congress. (n.d.). Library of Congress. https://www.loc.gov/
Merriam-Webster. (n.d.). Merriam-Webster dictionary. https://www.merriam-webster.com/
National Archives and Records Administration. (n.d.). National Archives. https://www.archives.gov/
National Archives and Records Administration. (n.d.). America’s founding documents. https://www.archives.gov/founding-docs
National Archives and Records Administration. (n.d.). Founders Online. https://founders.archives.gov/
National Museum of American History. (n.d.). National Museum of American History. Smithsonian Institution. https://americanhistory.si.edu/
National Park Service. (n.d.). National Park Service. U.S. Department of the Interior. https://www.nps.gov/
Oyez. (n.d.). Oyez: A multimedia judicial archive of the Supreme Court of the United States. https://www.oyez.org/
Smithsonian Institution. (n.d.). Smithsonian Institution. https://www.si.edu/
Supreme Court of the United States. (n.d.). Opinions of the Court. https://www.supremecourt.gov/opinions/opinions.aspx
U.S. Congress. (n.d.). Congress.gov. Library of Congress. https://www.congress.gov/
USA.gov. (n.d.). USA.gov. https://www.usa.gov/
Yale Law School. (n.d.). The Avalon Project: Documents in law, history and diplomacy. https://avalon.law.yale.edu/