USS Monitor
Ironclad warship
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USS Monitor was an ironclad warship built for the United States Navy during the American Civil War and completed in early 1862, the first such ship commissioned by the Navy. Wikipedia
Launched: January 30, 1862
Length: 171′
Construction started: October 25, 1861
Builder: Continental Iron Works, Greenpoint, Brooklyn
Designer: John Ericsson
Armament: 2 × 11 in (280 mm) smoothbore Dahlgren guns
Commissioned: 25 February 1862