References
Every course here is written against a named anchor text — one standard work whose terminology and topic boundaries the course follows — and checked against a secondary witness written independently of it. Where the two disagree, the course follows the anchor and says so at the entry where the disagreement lands. These are the texts for History of the United States II.
- Anchor
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OpenStax, U.S. History, chapters 16–32. Revision dated April 23, 2026.
- Witness 1
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The American Yawp, volume II, Stanford University Press.
- Witness 2
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Digital History, University of Houston. Free and independently authored.
- Primary sources
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The National Archives, for constitutional wording and dates; the Avalon Project, Lillian Goldman Law Library, Yale Law School, for treaties and statutes; History Matters, George Mason University, and the Gilder Lehrman Institute of American History, for the documentary record.
Naming the anchor is not a claim of endorsement by its publisher, and the course is not affiliated with any of the works above. Openly licensed texts carry their licence beside them; the rest are cited, not reproduced.