"Yesterday, December 7, 1941-a date which will live in infamy-the United States of America was suddenly and deliberately attacked by naval and air forces of the Empire of Japan." President Franklin Delano Roosevelt, 1941.

Hoven's Index for December 7, 2009
Number of US deaths from the Pearl Harbor attacks in 1941: 2,402. Number of atom bombs the US dropped on Japan in 1945: 2.
Number of days from when "Little Boy" (first atomic bomb) was assembled and ready, to when it was dropped on Japan: 5.
Number of days after "Little Boy" was dropped that "Fat Man" (second atomic bomb) was dropped on Japan: 3.
Number of deaths from the September 11 attacks in 2001: 2,976.