HMS Leviathan was a third-rate ship of the line of 1707 tons and 74 guns launched on 9 October 1790. She saw action at the Battle of Trafalgar. This is one of six ratings (1st, 2nd, 3rd, 4th, 5th, 6th) in the rating system of the Royal Navy. ... October 9 is the 282nd day of the year (283rd in Leap years). ... 1790 was a common year starting on Friday (see link for calendar). ... The Battle of Trafalgar, (French: le bataille de Trafalgar, Spanish: la batalla de Trafalgar) fought on 21 October 1805, was the most significant naval engagement of the Napoleonic Wars and the pivotal naval battle of the 19th century. ...

After the end of the Napoleonic Wars, in 1816 she was hulked into a prison ship. Napoleonic Wars are the wars fought during Napoleon Bonapartes rule of France. ... A Prison Ship is a boat or ship that is used as a prison. ...