Starting in 1972, these documents range from presidential speeches, international agreements, and Supreme Court decisions to U.S. governmental reports, scientific findings, and cultural discussions. The library has documents to 2010.
Primary source material on many aspects of early American history from 1789 to 1838, including approximately 6280 numbered publications, largely Congressional but also containing Executive Department materials (e.g., Foreign Relations, Indian Affairs, Public Lands, etc.)