United States Navy Birthday On Oct. 13, 1775, the U.S. Navy was born when the Continental Congress authorized the arming of two sailing vessels with 80 men and 10 carriage guns in order to intercept British supply and munitions transports. The Declaration of Independence came nine months later, followed by the creation of the Department of the Navy in 1798. Today, our Navy is the most powerful in the world. We at The Patriot offer our thanks to all our sailors for a job well done and wish you a Happy 234th Birthday! God bless you and your families.