September 30 in American History

September 30, 1954 — USS Nautilus is commissioned

The world's first nuclear-powered submarine entered service with the U.S. Navy. Nautilus could stay submerged for weeks instead of hours, and would go on to become the first vessel to cross the North Pole underwater in 1958 — a Cold War engineering leap that quietly changed naval warfare for good.

Common Questions About September 30

What happened on September 30 in American history?

In 1954: USS Nautilus is commissioned. The world's first nuclear-powered submarine entered service with the U.S.

Why is September 30 significant?

The world's first nuclear-powered submarine entered service with the U.S. Navy. Nautilus could stay submerged for weeks instead of hours, and would go on to become the first vessel to cross the North Pole underwater in 1958 — a Cold War engineering leap that quietly changed naval warfare for good.

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