<P> The United States Department of the Navy ( DoN ) was established by an Act of Congress on April 30 , 1798 ( initiated by the recommendation of James McHenry ) , to provide a government organizational structure to the United States Navy , the United States Marine Corps ( from 1834 onward ) and , when directed by the President ( or Congress during time of war ) , the United States Coast Guard , as a service within the Navy , though each remain independent service branches . The Department of the Navy was an Executive Department and the Secretary of the Navy was a member of the President 's cabinet until 1949 , when amendments to the National Security Act of 1947 changed the name of the National Military Establishment to the Department of Defense and made it an Executive Department . The Department of the Navy then became , along with the Department of the Army and Department of the Air Force , a Military Department within the Department of Defense : subject to the authority , direction and control of the Secretary of Defense . </P>
<P> The United States Department of the Navy ( DoN ) was established by an Act of Congress on April 30 , 1798 ( initiated by the recommendation of James McHenry ) , to provide a government organizational structure to the United States Navy , the United States Marine Corps ( from 1834 onward ) and , when directed by the President ( or Congress during time of war ) , the United States Coast Guard , as a service within the Navy , though each remain independent service branches . The Department of the Navy was an Executive Department and the Secretary of the Navy was a member of the President 's cabinet until 1949 , when amendments to the National Security Act of 1947 changed the name of the National Military Establishment to the Department of Defense and made it an Executive Department . The Department of the Navy then became , along with the Department of the Army and Department of the Air Force , a Military Department within the Department of Defense : subject to the authority , direction and control of the Secretary of Defense . </P>
when was the department of the navy established
when was the department of the navy established
April 30 , 1798
April 30 , 1798