21 October

On 21 October 1797 USS Constitution was launched.

The Battle of Trafalgar (21 October 1805) was a naval engagement fought by the British Royal Navy against the combined fleets of the French Navy and Spanish Navy, during the War of the Third Coalition (August–December 1805) of the Napoleonic Wars (1803–1815).

The Action of 21 October 1794 was a minor naval engagement fought off the Breton coast of France during the second year of the French Revolutionary Wars.

http://www.sailsofglory.org/showthre...Day-21-October

http://www.sailsofglory.org/showthre...21st-Trafaglar