dec 8, 1941 - President of the United States Franklin D. Roosevelt delivers his "Infamy Speech" to a Joint session of the United States Congress at 12:30 p.m. EST (17.30 GMT). Transmitted live over all four major national networks, it attracts the largest audience ever for an American radio broadcast, over 81% of homes.[27] Within an hour, Congress agrees to the President's request for a United States declaration of war upon Japan, and he signs it at 4:10 p.m