The Nautilus existed! The first submarine was found.

Submarine Development: A Survey of Submarine Visionaries and

What was the first submarine to go under the North Pole? - Quora

The Triple Helix

Nautilus, world's first nuclear submarine, to reopen after $36

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Ingenious: Nautilus and Me - Nautilus

The World's First Nuclear-powered American Submarine SSN-571

In this file photo taken Jan. 21, 1954, the nuclear-powered

First Nuclear Submarine: USS Nautilus & Its Secret Mission to the

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The Nautilus existed! The first submarine was found.