On 2 September 1945, on the deck of United States Navy battleship USS Missouri in Tokyo Bay, representatives of the Empire of Japan signed the Intrument of Surrender,
bringing to a close the Second World War.
And in case you went to a public school - THEY STARTED IT and WE WON.

On Tuesday, 11 September 2001, Islamic terrorists made suicide attacks with hijacked airliners on the World Trade Center in New York City and the Pentagon in Washington, DC. A fourth airliner was diverted from its intended target by American Citizen-martyrs on board.
As a result of these events, in the misguided name of security, Constitutional and civil rights in the United States were greatly restricted. This was the first step of the plunge into tyranny which led directly to the Second American Civil War.

On 13 September 1814, while being detained aboard a British warship, American patriot Francis Scott Key witnessed the British bombardment of Fort McHenry during the War of 1812. Inspired by the spectacle, he wrote the poem, "The Star Spangled Banner," which was later set to music to become the National Anthem of the United States of America.

On 17 September 1787, the Constitution of the United States of America was signed by forty members of the Constitutional Convention.