The date of the Pearl Harbor attack was December 7, 1941.
The Pearl Harbor attack was a surprise military strike by the Imperial Japanese Navy Air Service upon the United States against the U.S. Naval base at Pearl Harbor in Honolulu, Hawaii, just before 8:00 a.m., local time, on December 7, 1941. The attack led to the United States' formal entry into World War II the next day. The attack was intended as a preventive strike to keep the U.S. Pacific Fleet from interfering with Japanese planned expansion in Southeast Asia.
The attack on Pearl Harbor resulted in the deaths of 2,403 Americans, the wounding of 1,178 Americans, and the destruction of 188 aircraft, 18 warships, and 243 boats.
The attack on Pearl Harbor was a pivotal moment in American history. It unified the American people and led to the mobilization of the country's resources for war. The United States would go on to win World War II, in part due to the lessons learned from the attack on Pearl Harbor.