Skip to main content

This Day in American History

May 11

1 historic event on this date

Historical1858

Minnesota Admitted to the Union

Minnesota became the 32nd state admitted to the Union, just three years before the Civil War began. Its admission reflected the ongoing westward expansion of the republic and the intensifying debate over whether new states would permit slavery.

Why It Matters

Each new state's admission tested the balance between free and slave states, illustrating how the expansion of democracy was intertwined with the nation's deepest moral and constitutional conflicts.

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