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This Day in American History

February 19

1 historic event on this date

Historical1803

Ohio Admitted as 17th State

Ohio became the 17th state admitted to the Union, the first state carved from the Northwest Territory. Ohio's admission demonstrated the success of the Northwest Ordinance of 1787, which established the process for creating new states from western territories.

Why It Matters

Ohio's statehood validated the constitutional framework for admitting new states on equal footing with the original thirteen, proving that the republic could grow while maintaining democratic principles.

Explore the Principles Behind the History

Every event in American history connects to the founding principles. Discover the ideas that shaped these moments.

View the 28 Founding Principles