1787 – Delaware becomes the first state to ratify the United States Constitution.
1941 – World War II: Attack on Pearl Harbor – The Imperial Japanese Navy attacks the United States Pacific Fleet and its defending Army Air Forces and Marine air forces at Pearl Harbor, Hawaii, causing a declaration of war upon Japan by the United States. Japan also invades Malaya, Thailand, Hong Kong, the Philippines, and the Cutch East Indies at the same time.
1965 – Pope Paul VI and Patriarch Athenagoras simultaneously revoke mutual excommunications that had been in place since 1054.
1982 – In Texas, Charles Brooks, Jr. becomes the first person to be executed by lethal injection in the United States.