Believed to be the first bomb dropped on Pearl Harbor, Hawaii in the sneak-attack on Dec. 7, 1941, this picture was found torn to pieces at Yokusuka Base by photographer's mate 2/C Martin J. Shemanski of Plymouth, Pa. One Japanese plane is shown pulling out of a dive near bomb eruption (center) and another the air at upper right.
A Japanese fighter plane drops what's believed to be the first bomb on Pearl Harbor on Dec. 7, 1941.
  • Photos of the surprise attack captured the first bomb, a destroyer exploding, and Battleship Row billowing with smoke. 
  • News and images of the devastating attack shocked the nation. Congress declared war on Japan the next day.
  • Here are the stories behind five of those unforgettable images.

The attack on Pearl Harbor happened 81 years ago on Wednesday.