At 7:55 a.m. on December 7, 1941, a Japanese dive bomber appeared out of the clouds above the island of Oahu, Hawaii, followed by a swarm of 360 Japanese warplanes. A total of 2,400 Americans were killed and 1,200 were wounded. The surprise attack struck a severe blow to the U.S. Pacific fleet and drew the United States into World War II.
The next day, President Franklin D. Roosevelt declared December 7 as "a day that will live in infamy." And it has.