October 27th is NAVY DAY!
In 1922 October 27th was designated "Navy Day" by the United States Government. The date was chosen because October 27th was also the anniversary of Theodore Roosevelt's birthday. As assistant secretary of the Navy in the last years of the 19th century, Teddy Roosevelt pushed for the modernization of the fleet and as such is considered by many to be the father of the modern Navy.
In 1949 the Department of Defense decided that it would no longer officially celebrate Navy Day, and that instead of having its own unique day, that the Navy would instead join with the other services to mark Armed Forces Day each May. Navy Day, however, is still marked by the Navy League and many veterans groups, with parties, dances and other celebrations.