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The War in the West, 1861–1862
is also credited with building the first military submarine,
the H.C. Hunley. It was only used once during the war. On
the night of February 17, 1864, the eight-man crew of the
cigar-shaped iron submersible torpedoed a Union blockade
vessel off the coast of Charleston Harbor. The Hunley never
returned from the attack, lost at sea, along with its crew. The
wreck of the Hunley was rediscovered on the floor of the har-
bor in 2000 and has been recovered for museum display.
One of the most innovative technologies of the war was
the development of an entirely new kind of surface vessel—
the ironclad. In an age when ships were wooden sailing ves-
sels, the ironclads redefined the art of naval warfare. The
first was Southern made. In 1861, as the North abandoned
the naval yard at Norfolk, Virginia, they scuttled a wooden
steam frigate, the Merrimack, to keep it out of the hands of
the Rebels. Confederates later raised the sunken ship and
bolted iron plates over its hull, creating a new kind of vessel,
one capable of withstanding a naval cannon barrage. Ear-
lier wooden sailing ships designed for warfare had some-
times had portions of their hulls sheathed in copper, both
for defense and to protect the wood from shipworms, but
never the entire ship. Southerners rechristened their rede-
signed dreadnought the CSS Virginia.
The North did not intend to be outdone at sea, however.
The first Union ironclad, though, was not constructed from
an existing wooden ship. It was invented from the ground
up by a Swedish immigrant, John Ericsson, who had done
work for the U.S. Navy before the war. Working out of New
York City, Ericsson designed an odd-looking craft that was
made entirely of iron and sat low and flat in the water. The
most innovative feature was its revolving iron turret, which
allowed its two guns to fire in any direction. Ericsson built
his ship, the Monitor, in just four months, since the Virginia
was already in existence. There were plenty of problems,
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