Aug 26, 2026 · 48 min
The Northwest Ordinance mapped America’s westward future
Completing the Founding: The Northwest Ordinance of 1787
The ordinance shows how the early United States paired self-government and civil liberties with territorial expansion, slavery’s restriction, and Native dispossession.
- 1The Northwest Ordinance created a staged path from territorial administration to statehood under the new Union.
- 2Its protections for religious liberty and its slavery ban linked western settlement to competing visions of republican government.
- 3The territorial system expanded American power through commerce and military force while dispossessing Native nations.
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Peter Onuf connects the Northwest Ordinance’s system of self-government to the military power and Native dispossession required for American expansion.
The brief
Historian Peter Onuf joins Jeff Sikkenga to examine the Northwest Ordinance, a Confederation-era measure that gave the expanding United States a framework for governing western territory.
The ordinance treated land, commerce, transportation, and political institutions as tools for replacing imperial rule with settlements prepared for self-government and eventual statehood.
Its guarantees of religious liberty and civil freedom encouraged migration, while Article VI’s prohibition on slavery made the territory a significant test of republican principles.
The episode’s central tension is expansion itself: the territorial system extended American power through war and military force, contributing to the dispossession of Native nations.
Arthur St. Clair’s administration illustrates the practical conflicts between appointed governors, Federalist politics, and settlers trying to govern a rapidly changing frontier.
Onuf’s larger argument is that the ordinance became a durable founding framework for an American empire of liberty—one whose ideals and coercive expansion remained inseparable.
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