September 19
1915 - SECNAV Josephus Daniels organizes the Naval Consulting Board to mobilize the scientific resources of U.S. for national defense.
1957 - Bathyscaph Trieste, in a dive sponsored by the Office of Naval Research in the Mediterranean, reaches record depth of 2 miles
1992 - Joint Task Force Marianas stands down after providing assistance to Guam after Typhoon Omar
September 20
1911 - Navigational instruments first requested for naval aircraft.
1951 - In Operation Summit, the first combat helicopter landing in history, U.S. Marines were landed in Korea.
1981 - USS Mount Hood and Navy helicopters rescue 18 crew members of Philippine Navy frigate, Datu Kalantiaw