September 21
1858 - Sloop Niagara departs Charleston, SC, for Liberia with African slaves rescued from slave ship.
1923 - Asiatic Fleet completes mission of aiding earthquake victims in Japan.
1939 - President Franklin D. Roosevelt asks Congress to repeal the arms embargo provision of the Neutrality Act.
1944 - Aircraft from 12 carriers commence 2-day attack against Japanese ships and airfields on Luzon, Philippine Islands.
1984 - Mid East Force begins escort of U.S. flagged vessels in Persian Gulf.