Primary sources · American federalism
The Tenth Amendment, in the words of the people who argued it.
A curated, attribution-first library of founder letters, Federalist and Anti-Federalist essays, ratification records, and Supreme Court rulings — each verified, indexed by era and theme, and linked back to its original.
Built on verified provenance
Every primary-source entry carries its source, provenance, and an outbound link to the original. The library spans nine eras, from Colonial & Revolution to the modern Federalism Revival.