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This Day in American History

December 11

1 historic event on this date

Historical1816

Indiana Admitted to the Union

Indiana was admitted as the 19th state of the United States. The state's constitution prohibited slavery and included provisions for public education, reflecting the Northwest Ordinance's ban on slavery in the territory.

Why It Matters

Indiana's admission as a free state demonstrated how the Northwest Ordinance shaped the expansion of free-state governance and the national debate over slavery.

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