Nautilus was a submarine designed by Robert Fulton and first tested in 1800. Though preceded by Cornelis Drebbel's vessel of 1620 and the Turtle, Nautilus is often considered to be the first practical submarine.
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Foto: Wikimedia Commons — Robert Fulton, Ji-Elle, original design: Robert Fulton restoration: Durova (and Time (proste licence / javna domena)
