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This Day in American History

May 7

1 historic event on this date

Historical1915

Sinking of the Lusitania

A German submarine torpedoed the British ocean liner RMS Lusitania off the coast of Ireland, killing 1,198 people, including 128 Americans. The sinking intensified American public outrage and contributed to the eventual U.S. entry into World War I.

Why It Matters

The Lusitania disaster highlighted the challenges of maintaining neutrality during global conflict and contributed to the national debate about America's responsibilities in the international order.

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