In a turning point in the War of 1812, the British fail to capture Baltimore. During the battle, Francis Scott Key composes his poem "Defence of Fort McHenry", which is later set to music and becomes the United States' national anthem.
American Civil War: Union soldiers find a copy of Robert E. Lee's battle plans in a field outside Frederick, Maryland. It is the prelude to the Battle of Antietam.
Chairman Mao Zedong's second in command and successor Marshal Lin Biao flees the People's Republic of China after the failure of an alleged coup. His plane crashes in Mongolia, killing all aboard.
Taliban insurgents attack the United States consulate in Herat, Afghanistan, with two members of the Afghan National Police reported dead and about 20 civilians injured.