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This Day in American History

July 21

1 historic event on this date

Historical1861

First Battle of Bull Run

The first major land battle of the Civil War was fought near Manassas, Virginia. Union forces, expected to win a quick victory, were routed by Confederate troops. Spectators from Washington, D.C. who had come to watch the battle fled alongside retreating soldiers.

Why It Matters

The Union defeat at Bull Run shattered the illusion that the Civil War would be short and easy, forcing both sides to prepare for a long and costly struggle over the future of the nation.

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