This Day in U.S. Naval History – October 21
1846 - Miss Lavinia Fanning Watson of Philadelphia christens the sloop-of-war Germantown, the first U.S. Navy ship sponsored by a woman.
1951 - First of seven detonations, Operation Buster-Jangle nuclear test.
1962 - President John F. Kennedy orders surface blockade (quarantine) of Cuba to prevent Soviet offensive weapons from reaching Cuba during the Cuban Missile Crisis.
(Source: Navy News Service)